- Innoscience (Zhuhai) Technology Company, Ltd. / Innoscience America, Inc. v. Efficient Power Conversion CorporationNo claims unpatentablePTAB · Mar 25, 2025 · IPR2023-01382 · APJ Kimberly Mcgraw · IPR · Final written decision
Claims 1–3 were not shown unpatentable under any of five § 103 grounds because Petitioner failed to establish sufficient motivation to modify or combine the prior art.
RulingsFinal written decision- BurdenNot shown unpatentable
“A petition must identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim.” 35 U.S.C. § 312(a)(3) Here, Petitioner merely provides general assertions about multiple references, without clearly identifying how, or why a POSITA would have been motivated, to modify the processes disclosed in those references to arrive at the claimed invention. Thus, the Petition does not state with particularity that Saxler’s particular technique for etching is to be used instead of Beach’s etching step when substituting Beach’s self-aligned process for Saxler’s two mask process. Nor does the Petitioner provide a sufficient reason, absent hindsight, why a POSITA would have been motivated to combine the references to result in a process that forms Saxler’s Modified Figure 1A. Thus, for these additional reasons, Petitioner has not shown by a preponderance of the evidence that claim 1 would have been obvious over Saxler, Beach, and Shenoy.” slip op. at 34
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Both parties agree that the differences between the definitions do not impact the analysis. Resp. 11; Reply 2. In light of the record before us, and for purposes of this Decision, we adopt Petitioner’s proposal regarding the level of ordinary skill in the art. Based on our review of the ’347 patent and the prior art of record, we determine that the definition offered by Petitioner comports with the qualifications a person would have needed to understand and implement the teachings of the ’347 patent and the prior art. We also note that our Decision would be the same under either parties’ definition.” slip op. at 13
- Expert testimonyOther
“Petitioner’s expert, Dr. Shealy states that he understands paragraph 52 to mean that it is “fair game to pull the recess out of any of those figures [Figures 1A through 6].” Ex. 2004, 39:12–21. Dr. Shealy, however, also clarifies that “[a]s I said before, I think you could take all the embodiments and bring in which ones you want, depending on what you’re trying to accomplish.” Ex. 2004, 40:24–41:1. During the hearing, Petitioner admitted that Dr. Shealy’s “statement to modify the reference depending on what you're trying to accomplish” means that “a POSITA may modify with reason to do so. A POSITA would have removed Saxler’s recess to obtain the benefits of enhancement-mode.” Tr. 19:19–25. Again, the Petition does not provide a reason why a POSITA would have removed Saxler’s gate recess.” slip op. at 28
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable
“remove the recess in Saxler Figure 1A to arrive at the allegedly enhancement mode transistor of Modified Figure 1A. Contrary to Petitioner’s assertions in its Reply and at the hearing, the Petition makes no argument that a POSITA would have removed the recess from Saxler Figure 1A to realize the benefits of an enhancement mode transistor. See Reply 4–5; Pet. 24–68. Rather, the Petition merely asserts that a POSITA would have understood that the gate recess of Figure 1A is optional without providing any persuasive reason why a POSITA would have removed the gate recess but retained the sloped sidewalls of Figure 1A. Pet. 25, 40, 45. For example, Petitioner asserts that Saxler’s gate contact may be “recessed or non-recessed” and that when the gate recess shown in Figure 1A is not utilized, Saxler would have the structure of Saxler Modified Figure 1A. Pet. 25 (citing Ex. 1003 ¶ 81; Ex. 1007 ¶ 52, 66); see also Pet. 40, 45 (citing Ex. 1007 ¶ 52). Neither of these paragraphs provide sufficient motivation to a POSITA to remove the gate recess from Saxler Figure 1A. Saxler paragraph 52 states: Exemplary devices according to some embodiments of the present invention are schematically illustrated in FIGS. 1A through 6. Thus, while embodiments of the present invention are described herein with reference to a recessed gate structure or a non-recessed gate structure, other embodiments of the present invention may include or not include a gate recess. Accordingly, embodiments of the present invention should not be construed as limited to the particular exemplary embodiments described herein but may include any suitable structure having a cap layer and/or passivation layer as described herein. Ex. 1007 ¶ 52. Petitioner’s expert, Dr. Shealy states that he understands paragraph 52 to mean that it is “fair game to pull the recess out of any of those figures [Figures 1A through 6].” Ex. 2004, 39:12–21. Dr. Shealy, however, also clarifies that “[a]s I said before, I think you could take all the embodiments and bring in which ones you want, depending on what you’re trying to accomplish.” Ex. 2004, 40:24–41:1. During the hearing, Petitioner admitted that Dr. Shealy’s “statement to modify the reference depending on what you're trying to accomplish” means that “a POSITA may modify with reason to do so. A POSITA would have removed Saxler’s recess to obtain the benefits of enhancement-mode.” Tr. 19:19–25. Again, the Petition does not provide a reason why a POSITA would have removed Saxler’s gate recess.” slip op. at 28
Patent outcomesUS 9,748,347 not shown unpatentable§ 103 obviousnesscites Phillips · KSRPatents in suitUS 9,748,347 - Innoscience (Zhuhai) Technology Company, Ltd. / Innoscience America, Inc. v. Efficient Power Conversion CorporationAll claims unpatentablePTAB · Mar 25, 2025 · IPR2023-01384 · APJ Jeffrey W Abraham · IPR · Final written decision
Claims 1–7 are unpatentable as obvious over Yoshida and Saxler; the Board did not reach the alternative grounds.
RulingsFinal written decision- Skill levelOther
“In light of the record before us, we determine that we do not need to reach a specific finding regarding the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown”) (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985)).” slip op. at 13
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for petitioner
“In the Institution Decision, we declined to adopt Petitioner’s proposed construction of the “side surfaces” limitation and determined that it was not necessary to further construe this term because “[t]he parties do not dispute that the language ‘side surfaces extending horizontally’ encompasses a gate material with sloped side surfaces as depicted in Figure 5 of the ’335 patent.” Inst. Dec. 11–16 (citing Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017); Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)). We invited the parties to address this limitation further during the course of this trial, but neither party provided additional evidence or argument regarding the “side surfaces” limitation. Inst. Dec. 16; see generally PO Resp.; Reply; Sur-reply. Accordingly, we maintain our determination from the Institution Decision that we do not need to construe the “side surfaces” limitation. Inst. Dec. 15– 16.” slip op. at 14
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“This evidence, particularly the language in the ’335 patent itself, undermines Patent Owner’s argument that “[t]he process for forming gate ledges using separate masks instead of the self-aligned process disclosed in the ’335 patent cannot produce ledges that are ‘substantially symmetric.’” PO Resp. 39 (emphasis added); see also PO Resp. 42–43 (arguing that a gate structure with ledges having substantially equal widths is “not achievable” without using a single photo-mask process). We have considered the evidence presented by Patent Owner and Dr. Schubert in support of Patent Owner’s arguments. PO Resp. 38–43; Ex. 2005 ¶¶ 49–51. We, however, are unable to discern sufficient evidence supporting a conclusion that using separate masks cannot produce ledges that are substantially symmetric, particularly when the ’335 patent suggests otherwise. See Ex. 1001, 4:60– 63 (referring only to the “possibility of misalignment”). Even if, as Patent Owner and Dr. Schubert contend, misalignment “naturally” occurs when using a two-mask process, that does not foreclose the possibility that the” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner
“It is well settled that “[a] reference does not teach away . . . if it merely expresses a general preference for an alternative invention but does not ‘criticize, discredit or otherwise discourage’ investigation into the invention claimed.” DePuy Spine, Inc. v. Medtronic Sofamor Danek, Inc., 567 F.3d 1314, 1327 (Fed. Cir. 2009) (quoting In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004)). Furthermore, “teaching that a composition may be optimal or standard does not criticize, discredit, or otherwise discourage” slip op. at 31
Patent outcomesUS 10,312,335 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,312,335 - Innoscience (Zhuhai) Technology Company, Ltd. / Innoscience America, Inc. v. Efficient Power Conversion CorporationNo claims unpatentablePTAB · Mar 18, 2025 · IPR2023-01383 · APJ Kimberly Mcgraw · IPR · Final written decision
Claims 1–5 were not shown unpatentable because Petitioner did not sufficiently establish a reason to modify the asserted prior art.
RulingsFinal written decision- Expert testimonyPatent owner expert creditedDecided for patent owner
“We disagree with Petitioner’s argument because it fails to address Dr. Schubert’s academic and other experience with GaN transistors. Dr. Schubert is currently a tenured full professor in the Department of Electrical Computer, and Systems Engineering at Rensselaer Polytechnic Institute and was previously a tenured full professor in the Department of Electrical and Computer Engineering at Boston University. Ex. 2001, 129. Additionally, Dr. Schubert was the director of Boston University’s Semiconductor Devices Research Laboratory. Ex. 2001, 129. Dr. Schubert persuasively explains that his general expertise is in the field of electrical engineering and applied physics, including semiconductors, processing, and devices and his specific expertise is in the field of semiconductor materials (such as GaN), semiconductor devices, semiconductor integrated circuits, ohmic contacts, Schottky contacts, HEMTs, and optoelectronic devices such as light-emitting diodes (LEDs). Ex. 2001 ¶ 11, App’x A pp.129–137. His experience includes “the design, growth, fabrication, and testing of semiconductor devices as well as the employment of these devices in a variety of applications” and he is “familiar with both the design of such transistors [HEMTs] and the manufacturing processes used for FETs. Ex. 2001 ¶ 11, App’x A, pp. 129–137. He is an author or co-author of numerous text books and articles, and co-inventor of numerous patents, including those dealing with HEMT transistors and GaN devices. Ex. 2001 ¶ 13, App’x A, pp. 129–137. Petitioner fails to present any persuasive argument or evidence that Dr. Schubert’s extensive education and experience regarding GaN transistors is insufficient or lacking such that his testimony should be given little weight. Finally, we disagree with Petitioner’s additional argument that that its expert’s testimony (Dr. Shealy) should be given more weight than Patent Owner’s expert’s testimony (Dr. Schubert) because “[u]nlike Dr. Schubert, Dr. Shealy is one of the pioneer scientists in the field of GaN transistors.” Reply 34 (stating that Dr. Shealy’s research lab built the first GaN HEMT device on silicon in 1999 and citing Ex. 2002, 87:19–238). Obviousness is determined through the lens of a “person of ordinary skill in the art,” not through the lens of a person with extraordinary skill or a pioneer in the field. Given Dr. Schubert’s extensive relevant education and experience, Petitioner does not persuasively explain why Dr. Shealy’s testimony on any specific topic, or his testimony in general, should be given more weight than Dr. Schubert’s.” slip op. at 16
- Skill levelSkill level petitioner adoptedDecided for petitioner
“understanding of a person of ordinary skill in the art (sometimes abbreviated herein as “POSITA”). Graham, , 383 U.S. at 17–18. Petitioner argued that a person of ordinary skill in the art would have had a “at least a four-year degree in electrical engineering, chemical engineering, physics, or material science or a closely related field and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies. Additional education could substitute for professional experience and vice versa.” Pet. 11 (citing Ex 1003 ¶ 69). Patent Owner did not dispute this proposed definition prior to institution. See generally Prelim. Resp. In our Decision on Institution, we adopted Petitioner’s proposal. After institution, Patent Owner asserted a slightly different definition of a POSITA, namely someone who “would have possessed at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” Resp. 17. Relevant graduate education could substitute for the professional work experience. Id. Upon review of the full record, we see no reason to modify, and we thus maintain, the definition of a POSITA applied in our Decision on Institution. We also determine that our decision would be the same under either of the parties’ proposed definitions.” slip op. at 14
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Not reached
“During the proceeding, the parties also dispute the proper construction of “etching away the doped GaN layer, except a portion of the doped GaN layer beneath the gate contact” as recited in step [1e4] and provided briefing on this issue. Papers 35, 36, 37, 38. Because, as explained below, our determination rests upon Petitioner’s failure to show a sufficient reason to modify the asserted art, which is not dependent upon any particular claim construction, we need not, and do not, address these claim construction issues. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)) (holding that only claim terms in controversy need to be construed, and only to the extent necessary to resolve the controversy).” slip op. at 13
- ExcludeDenied
“III. PETITIONER’S MOTION TO EXCLUDE EXHIBIT 2008 Petitioner filed a Motion to Exclude (Paper 25, “Mot.”) Exhibit 2008, which is a hearing transcript from the parallel ITC investigation. Mot. 1. Because we do not rely upon Exhibit 2008 in our Decision, we dismiss Petitioner’s motion as moot.” slip op. at 47
Patent outcomesUS 8,404,508 not shown unpatentableClaim construction§ 103 obviousnesscites Phillips · KSRPatents in suitUS 8,404,508 - Innoscience (Zhuhai) Technology Company, Ltd / Innoscience America, Inc. v. Efficient Power Conversion CorporationAll claims unpatentablePTAB · Mar 18, 2025 · IPR2023-01381 · APJ Jon B Tornquist · IPR · Final written decision
Claims 1–3 and 7–9 are unpatentable as obvious over Uemoto and Smith; the motion to amend is granted, and proposed substitute claims 13 and 14 are not shown unpatentable.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“In order to determine whether an invention would have been obvious at the time the application was filed, we consider the level of ordinary skill in the pertinent art. Graham, 383 U.S. at 17. In assessing the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (quotation omitted). Petitioner contends a person of ordinary skill in the art “would have possessed at least a four-year degree in electrical engineering, chemical engineering, physics, or material science, or a closely related field, and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies.” Pet. 5–6. Petitioner contends “[a]dditional education could substitute for professional experience and vice versa.” Id. at 6. Patent Owner contends that a person of ordinary skill in the art would have had “at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” PO Resp. 7 (citing Ex. 2009 ¶ 82). Upon review of the evidence of record and the parties’ arguments, we adopt Petitioner’s definition of the person of ordinary skill in the art as it is consistent with the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (holding that the prior art itself can reflect the appropriate level of ordinary skill in the art). We note, however, that the conclusions reached in this Decision would be the same under either proposed definition of the ordinarily skilled artisan. See Ex. 2009 ¶ 83 (Dr. Schubert testifying that his opinions would be the same under either proposed definition); Ex. 1033 ¶ 9 (Dr. Shealy testifying that the differences in proposed definitions of the ordinarily skilled artisan “would not change the outcome of the invalidity analysis in any material manner”); PO Resp. 7; Pet. Reply 1.” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“compensated GaN layer above the barrier layer, and a gate contact above the compensated GaN layer.” Ex. 1001, 5:12–18. Petitioner contends the term “compensated” indicates that the step of compensating the GaN layer has already occurred, such that the term “compensated GaN layer” should be construed as a “‘[d]oped GaN layer formed with a step to passivate its impurities’ which is a ‘product-by-process’ limitation.”5 Pet. 12–14. And, because compensation with hydrogen was the “critical step” distinguishing the claims from the prior art, and because hydrogenation in as-grown III-nitride materials had been well known for over a decade by 2009, Petitioner contends “compensated” “cannot be interpreted as mere hydrogen presence in as-grown material, a well-known property of doped GaN.” Id. at 15. Patent Owner contends “compensated GaN material” should be construed as “a semiconductor GaN gate material in which one type of impurity (for example, donor) cancels the electrical effects of the other type of impurity (for example, acceptor).” PO Resp. 11 (citing Ex. 2009 ¶ 92) (emphasis added). Patent Owner contends this construction is consistent with the IEEE dictionary, which defines “compensated semiconductor” as 5 Given that product-by-process steps in a device claim are not entitled to patentable weight, Petitioner contends “the prior art only need show a material with passivated impurities to show unpatentability, not the step to achieve it.” Pet. 15–16. “[a] semiconductor in which one type of impurity or imperfection (for example, donor) partially cancels the electric effects of the other type of impurity or imperfection (for example, acceptor).” PO Resp. 14 (quoting Ex. 2004). Patent Owner contends its construction is also consistent with the written description of the ’294 patent, which explains that a compensated GaN material is part of the gate and includes a p-type impurity that imparts an electrical effect (i.e., conductivity), as well as a second impurity, e.g., hydrogen, that partially cancels the electrical effect of the p-type impurity, rendering the layer semi-insulating. Id. at 14–15 (citing Ex. 1001, 3:10–13, 3:43–45). On this record, we construe “compensated GaN layer” as “a GaN layer in which one type of impurity (for example, donor) partially cancels the electric effects of the other type of impurity (for example, acceptor).” This is consistent with the disclosures of the ’294 patent, the IEEE dictionary definition, and the construction ultimately adopted by the ITC. Ex. 2004, 3; Ex. 1049, 16–17 (ITC construing “compensated GaN layer” to mean “a GaN layer in which one type of impurity partially cancels the electrical effects of another type of impurity”); Ex. 1001, 3:43–45 (explaining that the compensated GaN layer of the ’294 patent is formed through the “passivation of a p-type impurity using hydrogen”). For the reasons set forth below, however, we decline to construe “compensated GaN layer” as a product-by-process claim term (as asserted by Petitioner), or to limit the compensated GaN layer to a gate material (as asserted by Patent Owner).” slip op. at 11
- Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageDisclaimer not foundDecided for petitioner
“There are two exceptions to the general rule that we apply the ordinary and customary meaning of a claim term: (1) when a patentee sets out a definition and acts as his own lexicographer, or (2) when the patentee disavows the full scope of a claim term either in the specification or during prosecution. See Thorner, 669 F.3d at 1365. The standards for lexicography and disclaimer, however, are “exacting.” Id. at 1366. There is no argument that the patentees acted as their own lexicographer to redefine the term “compensated GaN layer.” With respect to disavowal, a “patentee may demonstrate intent to deviate from the ordinary and accustomed meaning of a claim term by including in the specification expressions of manifest exclusion or restriction, representing a clear disavowal of claim scope.” Thorner, 669 F.3d at 1366 (quoting Teleflex, Inc. v. Ficosa N. Am. Corp., 299 F.3d 1313, 1325 (Fed. Cir. 2002)). As noted by Patent Owner, the title of the ’294 patent is, in part, “Compensated Gate MISFET” and much of the discussion of the ’294 patent is of a compensated GaN layer that is directly below the gate contact and above a barrier layer and operates in conjunction with the gate contact to control the on/off state of the transistor. PO Resp. 12–14. We are presented with insufficient argument or evidence to conclude, however, that these disclosures rise to the level of a disclaimer. For example, although the title of the ’294 patent is directed to a “Compensated Gate MISFET,” claim 1 is more broadly directed to “[a] column III Nitride transistor.” Ex. 1001, 5:12, code (54). Nor are we directed to an expression or statement of manifest exclusion in the ’294 patent that would serve to disclaim any “compensated GaN layer” that is not directly below the gate and/or that does not function in concert with the gate electrode to control the on/off state of the transistor. See Thorner, 669 F.3d at 1366. With respect to the stated goals of the invention, as noted by Patent Owner, one of the primary purposes of the compensated GaN layer of the ’294 patent is to reduce gate leakage and gate capacitance. Ex. 1001, 2:13– 19, 3:18–21 (“[U]sing a compensated semiconductor layer 38 leads to low gate leakage during device operation.”). We cannot use the goals of the invention, however, to rewrite the claims or insert terms that are not present. See Thorner, 669 F.3d at 1366. Moreover, the prior art of record indicates that a compensated GaN layer that is below the gate contact and above a barrier layer, but not part of the active gate structure, may also “decrease the leakage current between the gate and the drain.” Ex. 1006 ¶¶ 44 (“Even when a positive bias of 5 V or higher is applied to the gate electrode, no significant gate-leakage current is observed.”), 61. As such, evidence of record suggests that a person of ordinary skill in the art would have understood that one of the primary goals disclosed in the ’294 patent is achieved regardless of whether the compensated GaN layer is part of the gate, or simply in close vicinity to the gate. In view of the foregoing, we are not persuaded that the written description of the ’294 patent indicates that the “compensated GaN layer” must be part of the gate structure.” slip op. at 17
- Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner
“To be probative, Patent Owner must prove there is a nexus between the presented evidence and the merits of the claimed invention. See Demaco Corp. v. F. Von Langsdorff Licensing Ltd., 851 F.2d 1387, 1392 (Fed. Cir. 1988). A rebuttable presumption of nexus applies when the “patentee shows that the asserted evidence is tied to a specific product and that the product ‘is the invention disclosed and claimed.’” Fox Factory, Inc. v. SRAM, LLC, 944 F.3d 1366, 1373 (Fed. Cir. 2019) (quoting Demaco, 851 F.2d at 1392). “That is, presuming nexus is appropriate ‘when the patentee shows that the asserted objective evidence is tied to a specific product and that product embodies the claimed features, and is coextensive with them.’” Id. (quoting Polaris Indus., Inc. v. Arctic Cat, Inc., 882 F.3d 1056, 1072 (Fed. Cir. 2018)). If the praise is not limited to the features of the claimed invention, the patent owner may still prove nexus “by showing that the evidence of secondary considerations is the ‘direct result of the unique characteristics of the claimed invention.’” Id. at 1373–74 (quoting In re Huang, 100 F.3d 135, 140 (Fed. Cir. 1996)). Patent Owner contends that the compensated gate of the ’294 patent “was a breakthrough invention and resulted in the first commercially viable enhancement-mode GaN transistor.” PO Resp. 60 (citing Ex. 2009 ¶¶ 192– 193, 197; Ex. 2021). Patent Owner further contends that this achievement required the counter-intuitive use of a compensated gate material in the gate structure, and represented “a technological leap that laid the foundation for viable enhancement-mode GaN transistors.” Id. at 61–62. For this achievement, Patent Owner contends the inventor, Dr. Alex Lidow, received the 2015 SEMI Award. Id. at 60 (citing Ex. 2021). Upon review of Patent Owner’s evidence and the parties’ arguments, we find that Patent Owner’s objective indicia evidence is entitled to little, if any, weight. The evidence of praise relied upon by Patent Owner is not clearly linked to the claimed invention or any particular product having each of the claimed features of the ’294 patent. Ex. 2021. For example, the 2015 SEMI award was provided to Dr. Lidow “for commercialization of GaN power devices.” Id. An article explaining the award indicates that “high cost” previously “limited [the] commercial success” of GaN technologies, but Dr. Lidow was able to overcome these issues, “from resolving packaging limitations to establishing a low-cost supply chain,” “through persistence.” Id. This praise is not demonstrably linked to the claimed invention or any particular device, and does not mention the use of a compensated gate, or any other relevant feature recited in the claims. In view of the foregoing, we determine that Patent Owner’s objective evidence of non-obviousness is entitled to little, if any, weight.” slip op. at 20
Patent outcomesUS 8,350,294 unpatentableClaim construction§ 103 obviousness§ 112 disclosurecites KSR · GrahamPatents in suitUS 8,350,294 - Tiktok Inc. v. Ntech Properties, Inc.InstitutedPTAB · Mar 10, 2025 · IPR2024-01342 · APJ Scott Raevsky · IPR · Institution
The Board instituted IPR on claims 1–10 and all asserted grounds; it found a reasonable likelihood that claim 1 would have been obvious over Whitehead.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Based on our review of the preliminary record, Petitioner has demonstrated a reasonable likelihood of prevailing on at least one challenged claim. See 35 U.S.C. § 314(a). Accordingly, we institute an inter partes review on all challenged claims and all grounds asserted in the Petition. 37 C.F.R. § 42.108(a). However, Patent Owner calls into question some of Petitioner’s challenges.” slip op. at 2
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot reached
“Petitioner contends that one motivation for combining would have been that Marcus ’904 includes additional disclosure of targeting media programming to specific users, which would lead to better customization of media programming by Cristofalo. Pet. 38 (citing Ex. 1002 ¶ 122). This assertion is vague and unexplained. Petitioner also asserts that Marcus ’904 provides “additional implementation details” on how final media programming is generated and formatted for display. Id. at 38–39 (citing Ex. 1002 ¶ 123). We fail to see, at this stage, how merely disclosing additional details would motivate a skilled artisan to combine references. If we were to agree with a proposed combination merely because one reference includes details another does not, this could “swallow all of patent law.” Cf. Alice Corp. Pty. Ltd. v. CLS Bank Int’l, 573 U.S. 208, 217 (2014) (addressing patent eligibility). Finally, Petitioner contends that combining Marcus ’904’s advertising sources would unlock new revenue sources for Cristofalo. Pet. 39 (citing Ex. 1002 ¶ 124). Patent Owner argues that this rationale appears to be superfluous, since Cristofalo already discloses targeting advertising to users. Prelim. Resp. 26 (“Cristofalo’s receiving system ‘already’ assembles the programming with advertisements.”); see Pet. 38 (referring to Cristofalo’s “targeted advertising”). We tend to agree at this stage. Thus, we question Petitioner’s rationale to combine Cristofalo with Marcus ’904.” slip op. at 16
- Skill levelSkill level petitioner adoptedDecided for petitioner
“The parties’ definitions are similar, although we observe that Patent Owner proposes that the person of ordinary skill would have a bachelor’s degree or professional experience, whereas Petitioner proposes that such a person would have both a degree and experience. See also Ex. 2001 ¶ 17 (Patent Owner’s declarant, Dr. Goodrich, stating that “I note that my definition of a POSITA is similar to that of Dr. Almeroth.”).” slip op. at 6
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner asserts that “[n]o express constructions are required.” Pet. 9. Patent Owner also proposes no express constructions. We agree that no claim terms require construction at this stage.” slip op. at 7
Claim construction§ 103 obviousnesscites AlicePatents in suitUS 8,886,753 - Tiktok Inc. v. Ntech Properties, Inc.InstitutedPTAB · Mar 10, 2025 · IPR2024-01340 · APJ Scott Raevsky · IPR · Institution
The Board instituted IPR on claims 1–24 and all asserted grounds, finding a reasonable likelihood of prevailing on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Based on our review of the preliminary record, Petitioner has demonstrated a reasonable likelihood of prevailing on at least one challenged claim. See 35 U.S.C. § 314(a). Accordingly, we institute an inter partes review on all challenged claims and all grounds asserted in the Petition. 37 C.F.R. § 42.108(a). However, Patent Owner calls into question some of Petitioner’s challenges.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“The parties’ definitions are similar, although we observe that Patent Owner proposes that the person of ordinary skill would have a bachelor’s degree or professional experience, whereas Petitioner proposes that such a person would have both a degree and experience. See also Ex. 2001 ¶ 17 (Patent Owner’s declarant, Dr. Goodrich, stating that “I note that my definition of a POSITA is similar to that of Dr. Almeroth.”). We adopt Petitioner’s assessment at this stage. Petitioner’s assessment is supported by the testimony of Dr. Almeroth and is consistent with the ’704 patent and the asserted prior art. However, our obviousness analysis would have been the same under either party’s assessment. See id. (“My opinions in this declaration would not change were I to adopt the definition of a POSITA offered by Dr. Almeroth.”).” slip op. at 7
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for patent owner
“On this record, we find Patent Owner’s references to Marcus156’s “exemplary methods” and systems to be non-limiting. Our reviewing court “has repeatedly cautioned against limiting the claimed invention to preferred embodiments or specific examples in the specification.” Williamson v. Citrix Online, LLC, 792 F.3d 1339, 1346–47 (Fed. Cir. 2015) (internal quotation omitted). “Absent disclaimer or lexicography, the plain meaning of the claim controls.” Toshiba Corp. v. Imation Corp., 681 F.3d 1358, 1369 (Fed. Cir. 2012). Patent Owner points us to no disclaimer or lexicography in the specification, including in Marcus156.” slip op. at 8
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightMotivation not foundNot shown unpatentable
“Patent Owner attacks Petitioner’s “post-hoc rationalization for its proposed modification,” namely “more efficient processing or ‘simplifying processing and communications.’” Prelim. Resp. 26 (citing Pet. 18–19).14 Patent Owner asserts, in part, that Whitehead’s design already permits the “real time or near-real time” assembly of a custom media channel, so “it would be superfluous to include the same information again in the custom channel request.” Id. at 27–28 (citing, e.g., Ex. 1003, 4:40–44, 8:45–51, 11:45–49). At this stage, we tend to agree with Patent Owner. Petitioner acknowledges that “[m]ixing server 130 creates custom media channel 170 in real time or near real-time” yet asserts a POSITA would have modified Whitehead to speed up this process. See Pet. 18. If Whitehead already processes in real time or near real time, it is unclear why a skilled artisan would have sped up that process. Thus, Petitioner’s rationale does appear to be superfluous and hindsight-based at this stage.” slip op. at 17
Claim construction§ 103 obviousnessPatents in suitUS 8,145,704 - Tiktok Inc. v. Ntech Properties, Inc.Institution deniedPTAB · Mar 10, 2025 · IPR2024-01343 · APJ Ken B Barrett · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1 and 2 were unpatentable under any of the three asserted obviousness grounds.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“II. ANALYSIS A. Principles of Law Petitioner bears the burden of persuasion to prove unpatentability of the claims challenged in the Petition, and that burden never shifts to Patent Owner. Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015). A patent claim is unpatentable under 35 U.S.C. § 103(a) if the differences between the claimed subject matter and the prior art are such that the subject matter, as a whole, would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 406 (2007). The question of obviousness is resolved on the basis of underlying factual determinations including: (1) the scope and content of the prior art; (2) any differences between the claimed subject matter and the prior art; (3) the level of skill in the art; and (4) if present, any objective evidence of obviousness or non-obviousness. Graham v. John Deere Co., 383 U.S. 1, 17–18 (1966).” slip op. at 7
- Skill levelSkill level petitioner adoptedDecided for petitioner
“The parties’ definitions are similar, although we observe that Patent Owner proposes that the person of ordinary skill would have a bachelor’s degree or professional experience, whereas Petitioner proposes that such a person would have both a degree and experience. Petitioner’s definition is consistent with the level of ordinary skill reflected in the prior art references of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (recognizing that the prior art itself may reflect an appropriate level of skill in the art). For purposes of this decision, we apply Petitioner’s definition of the person of ordinary skill in the art. Cf. Ex. 2001 ¶ 17 (Patent Owner’s declarant, Dr. Goodrich, stating that “[m]y opinions in this declaration would not change were I to adopt the definition of a POSITA offered by [Petitioner’s declarant] Dr. Almeroth.”).” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“dedicated to claim construction, but Patent Owner does address claim construction in its discussion of Petitioner’s challenges. See, e.g., Prelim. Resp. 21–23 (Patent Owner arguing: “Petitioner’s ‘Feed Selection Mapping 2’ should be rejected because it relies on rewriting the claim so that it encompasses a device other than the aggregator providing user information to the publisher. . . . Because Whitehead’s alleged aggregator does not provide profiles to the alleged publisher in a channel request responsive to that request, ‘Feed Selection Mapping 2’ does not even meet the plain reading of the aggregator providing to the publisher ‘the media feed selection’ with ‘user information’ included.” (emphasis added)). Because our decision does not turn on this proposed construction, we need not address it. On this record and for purposes of this decision, we determine that no claim terms require express construction. D. The Alleged Obviousness of Claims 1 and 2 over Whitehead (Ground 1)” slip op. at 9
- BurdenDecided for patent owner
“We find the Petition to be too confusing to follow. It is Petitioner’s burden to articulate a coherent and discernable case that is readily understandable by the Board and that places Patent Owner on notice of the basis of Petitioner’s case so that Patent Owner may have the opportunity to respond. See 37 C.F.R. § 42.104(b) (“[T]he petition must set forth . . . a statement of the precise relief requested for each claim challenged,” including “specify[ing] where each element of the claim is found in the prior art.” (emphasis added)). In light of the above, we determine that Petitioner has not demonstrated a reasonable likelihood of prevailing on its Whitehead obviousness challenge.” slip op. at 16
Claim constructioncites Phillips · KSR · GrahamPatents in suitUS 9,923,947 - Tiktok Inc. v. Ntech Properties, Inc.Institution deniedPTAB · Mar 10, 2025 · IPR2024-01341 · APJ Ken B Barrett · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood of proving claims 1–10 unpatentable under any of the three asserted obviousness grounds.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“An inter partes review may not be instituted “unless . . . the information presented in the petition . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). Having considered the arguments and evidence presented by Petitioner and Patent Owner, we determine that Petitioner has not demonstrated a reasonable likelihood of prevailing on at least one of the challenged claims of the ’261 patent. Accordingly, we do not institute an inter partes review of the challenged claims.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“The parties’ definitions are similar, although we observe that Patent Owner proposes that the person of ordinary skill would have a bachelor’s degree or professional experience, whereas Petitioner proposes that such a person would have both a degree and experience. Petitioner’s definition is consistent with the level of ordinary skill reflected in the prior art references of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (recognizing that the prior art itself may reflect an appropriate level of skill in the art). For purposes of this decision, we apply Petitioner’s definition of the person of ordinary skill in the art. Cf. Ex. 2001 ¶ 17 (Patent Owner’s declarant, Dr. Goodrich, stating that “[m]y opinions in this declaration would not change were I to adopt the definition of a POSITA offered by [Petitioner’s declarant] Dr. Almeroth.”).” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“read limitations out of the claims.” (citation omitted)). Because our decision does not turn on this proposed construction, we need not address it. On this record and for purposes of this decision, we determine that no claim terms require express construction.” slip op. at 10
- BurdenDecided for patent owner
“Thus, according to Whitehead, the purported client device (media player 115) is a TV or monitor that displays menus, whereas the selection of programming is performed by the remote control 111 in conjunction with the set top box (content processing device 110). Petitioner does not explain adequately how the TV/monitor itself has the capability of selecting a program or, in terms of the claim, how the aggregator (set top box) receives a media feed selection from the TV/monitor. Petitioner’s lengthy string cite, see Pet. 21, is not an adequate substitute for an explanation in the Petition, and we decline to study all the cited portions to try to discern whether Petitioner might have a viable explanation as to how the TV/monitor selects programming.” slip op. at 12
Claim constructioncites Phillips · KSR · GrahamPatents in suitUS 9,215,261 - Tiktok Inc. v. Ntech Properties, Inc.Institution deniedPTAB · Feb 25, 2025 · IPR2024-01339 · APJ Terrence W Mcmillin · IPR · Institution
The Board denied institution on claims 1–20 because the petition did not show a reasonable likelihood of proving the claims obvious over the asserted prior-art combinations.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“review. 35 U.S.C. § 314; 37 C.F.R. § 42.4(a) (“The Board institutes the trial on behalf of the Director.”). The standard for institution is set forth in 35 U.S.C. § 314(a), which provides that inter partes review may not be instituted unless “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition and the Preliminary Response, as well as the evidence of record, we deny institution of inter partes review of the ’597 patent.3” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“B. Level of Ordinary Skill in the Art Petitioner contends: A person of ordinary skill in the art at the time of the ’597 patent (“POSITA”) had at least a Bachelor of Science in electrical engineering, computer engineering, or similar fields and at least two years of practical experience in the field of media processing and/or transmission. More education can supplement for less practical experience, and vice versa. Pet. 4–5. Patent Owner does not dispute Petitioner’s description. Prelim. Resp. 26.” slip op. at 8
- Expert testimonyPetitioner expert discountedDecided for patent owner
“Petitioner cites the Alermoth Declaration, paragraphs 198–201, but does not explain the content or pertinence of this testimony. See Pet. 21. We have reviewed this testimony and determine that it is conclusory. This testimony repeats, almost verbatim, the language in the Petition without any further explanation or supporting reasoning or evidence. See Ex. 1002 ¶¶ 198–201. We accord this testimony little or no weight. See cxLoyalty, Inc. v. Maritz Holdings Inc., 986 F.3d 1367, 1378 (Fed. Cir. 2021) (“We do not accord weight to conclusory expert testimony.”); see also 37 C.F.R. § 42.65(a) (“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight.”).” slip op. at 16
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentable
“With regard to Petitioner’s contention that “it would have been obvious for a POSITA to modify Ferman’s system to more explicitly select clips for inclusion in the final video programming based on their ability to transition between other events,” we determine that this contention is not adequately supported by articulated reasoning. See Pet. 48. Petitioner asserts that, “[a] POSITA would have been motivated to do so by at least Ferman’s expressed desire to ‘include content suited to [the user’s] particular viewing preferences.’” Id. (citing Ex. 1002 ¶ 89). There is no articulated reasoning (and we can discern none) as to how or why including content suited to a user’s preferences would have motivated a skilled artisan to modify Ferman to select transitional clips. Petitioner also asserts, “doing so would provide more compelling and cohesive video programming.” Id. There is no articulated reasoning or explanation for this assertion and we find this statement to be too general and unsupported. We determine that Petitioner has not established that a skilled artisan would have been motivated to modify Ferman’s system as proposed in the Petition. Patent Owner argues that “Petitioner fails to demonstrate that Ferman discloses ‘identifying . . . a plurality of first[/second] transitional clips.’” Prelim. Resp. 39 (alteration in original). We agree with Patent Owner that the Petition fails to provide adequate support for its assertion that limitations 1[d] and 1[j] are taught or suggested by Ferman.” slip op. at 26
§ 103 obviousnesscites Phillips · GrahamPatents in suitUS 9,317,597 - Tiktok Inc. v. Ntech Properties, Inc.Institution deniedPTAB · Feb 25, 2025 · IPR2024-01338 · APJ Terrence W Mcmillin · IPR · Institution
The Board denied institution on all grounds because the petition did not show a reasonable likelihood of prevailing on any challenged claim, including deficiencies in the Marcus156- and Ferman-based obviousness showings.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“III. CONCLUSION We have weighed the evidence presented by Petitioner and considered its arguments. We determine that Petitioner fails to establish a reasonable likelihood that it would prevail with respect to at least 1 of the claims challenged in the Petition. For each challenged claim in each asserted ground of unpatentability, Petitioner fails to establish that the asserted art teaches or suggests multiple recited limitations. Accordingly, we determine that trial should not be instituted on claims 1–20 of the ’185 patent. IV. ORDER Upon consideration of the record before us, it is: ORDERED that the Petition is denied as to all challenged claims, and no trial is instituted.” slip op. at 37
- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsNot reached
“review. 35 U.S.C. § 314; 37 C.F.R. § 42.4(a) (“The Board institutes the trial on behalf of the Director.”). The standard for institution is set forth in 35 U.S.C. § 314(a), which provides that inter partes review may not be instituted unless “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” After considering the Petition and the Preliminary Response, as well as the evidence of record, we deny institution of inter partes review of the ’185 patent. 3 1 Petitioner identifies TikTok Inc., Bytedance Ltd., Bytedance Pte. Ltd., and TikTok Pte. Ltd. as real parties-in-interest. Pet. 2. 2 Patent Owner identifies itself, NTECH Properties, Inc., as the real party-ininterest. Paper 4 (Patent Owner’s Mandatory Notices), 1. 3 In addition to the Petition and Preliminary Response, Petitioner’s Preliminary Reply (Paper 7) and Patent Owner’s Preliminary Sur-reply (Paper 8) were filed. However, these papers were limited to arguments related to discretionary denial under 35 U.S.C. § 325(d). We do not reach the issue of discretionary denial in light of our decision to deny institution on the merits.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“B. Level of Ordinary Skill in the Art Petitioner contends: A person of ordinary skill in the art at the time of the ’185 patent (“POSITA”) had at least a Bachelor of Science in electrical engineering, computer engineering, or similar fields and at least two years of practical experience in the field of media processing and/or transmission. More education can supplement for less practical experience, and vice versa. Pet. 5. Patent Owner does not dispute Petitioner’s description. Prelim. Resp. 23. Determining the level of ordinary skill in the art involves various factors, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citation omitted). The prior art of record also reflects the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). For purposes of this Institution Decision, we adopt the description offered by Petitioner. It is not disputed by the Patent Owner and is consistent with the ’185 patent and the asserted prior art.” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“C. Claim Construction In inter partes reviews, the Board construes claims using the same claim construction standard employed in a civil action under 35 U.S.C. § 282(b). 37 C.F.R. § 42.100(b). The “words of a claim ‘are generally given their ordinary and customary meaning,’” as would have been understood by a person of ordinary skill in the art at the time of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed. Cir. 2005) (en banc) (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). “In determining the meaning of the disputed claim limitation, we look principally to the intrinsic evidence of record, examining the claim language itself, the written description, and the prosecution history, if in evidence.” DePuy Spine, Inc. v. Medtronic Sofamor Danek, Inc., 469 F.3d 1005, 1014 (Fed. Cir. 2006) (citing Phillips, 415 F.3d at 1312–17). Neither Petitioner nor Patent Owner requests express claim construction. Pet. 5; Prelim. Resp. 23. And, no need exists to expressly construe any claim terms to resolve this dispute. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“[W]e need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 9
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · GrahamPatents in suitUS 8,875,185
Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.