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  • Posco Co., Ltd. v. ArcelormittalAll claims unpatentable
    PTAB · Jul 16, 2026 · IPR2025-00371 · APJ Brian D Range · IPR · Final written decision

    Claims 1–25 are unpatentable as obvious under § 103 over the asserted combinations of Takagi, Cornette, Suehiro, GMW14400, Laurent, and Vaissiere.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner contends that a person of ordinary skill in the art (POSITA) “would have had an undergraduate degree in materials science, manufacturing engineering, mechanical engineering, or equivalent knowledge, training, or experience, with two years of experience working in metallurgy.” Pet. 6 (citing Ex. 1003 ¶ 15). Patent Owner does not challenge Petitioner’s definition of a POSITA for this proceeding. PO Resp. 8. Because the parties agree and because Petitioner’s proposal is reasonable and consistent with the ’227 patent specification and the prior art, we adopt Petitioner’s proposal. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art may reflect an appropriate level of skill in the art).” slip op. at 8

    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for patent owner

      “1. superficial layer The only independent claim at issue, claim 1, recites a “Superficial layer.” Ex. 1001, 15:6. Patent Owner argues that, based on plain and ordinary meaning, the term “superficial layer” refers to a “surface layer” or “top layer.” PO Resp. 8–9. Petitioner does not dispute this construction. See Pet. Reply 21–22 (arguing that the relevant layer of the Suehiro reference is a superficial layer because it is outermost and present at the surface). Because the parties are in agreement and because that agreement is consistent with plain language, claim language, and the ’227 specification, we construe “superficial layer” as referring to a surface layer or top layer.” slip op. at 10

    • Claim Construction › Extrinsic evidence (dictionaries, experts)Term construed petitioner constructionDecided for petitioner

      “defined stoichiometry” (Ex. 2037, 527) but the word may also be a “generic term for phases . . . which may have a narrow or extended compositional stability range” (id.). The first glossary meaning is consistent with Patent Owner’s position. The second, broader, glossary meaning is consistent with Petitioner’s position. Some of the extrinsic sources before us support the broad definition, and some support the narrow definition. See PO Sur-Reply 3–4 (arguing that Dr. Miles admitted that various treatises distinguish intermetallic compounds from alloys and solid solutions). Thus, neither Dr. Miles or Dr. Raabe is “wrong scientifically” in how they use the term “intermetallic” in this proceeding. Id. at 2 (noting that Dr. Miles agreed that Dr. Raabe’s construction is not wrong scientifically). As explained below, however, only one of these meanings is appropriate here. To decide which possible meaning applies to the ’227 patent, we focus on the patent claims and specification. Claim 1 indicates that the intermetallic layer has a “mean composition” (emphasis added). Ex. 1001, 15:1–10. This indicates, albeit weakly, that iron composition across the layer may vary rather than having ordered stoichiometry—consistent with Petitioner’s position. The specification also indicates that “intermetallic alloying” is a possibility—again, consistent with Petitioner’s position. Ex. 1001, 2:47–50. Meanwhile, nothing in the ’227 specification explicitly (or implicitly) suggests that “intermetallic layer” must be limited to elements atomically joined with defined stoichiometry in an ordered crystal structure. We also find that Dr. Miles’s testimony regarding the meaning of “intermetallic” is more credible than Dr. Rabbe’s testimony. Dr. Rabbe, in deposition, stated that Figure 2 of the challenged patent “does not show a layer that meets [his] construction of intermetallic.” Ex. 1078, 129:21–24. The ’227 patent, however, states that Figure 2 includes an “Al-rich Intermetallic layer.” Ex. 1001, Fig. 2, 3:60–64 (“FIG 2. Illustrates a coating … which does not correspond to the invention. This succession of layers (interdiffusion layer and intermetallic layer) yields inferior results in resistance spot welding.”). Also, Dr. Raabe previously referred to a layer of Takagi as having “intermetallic phase layering and structure.” Pet. Reply 4 (citing Ex. 1076 ¶ 166; Ex ¶ 1075, 17) (emphasis omitted). Thus, Dr. Raabe’s construction of “intermetallic” for this proceeding does not fully account for the ’227 patent usage of the word “intermetallic” and does not fully account for Dr. Raabe’s prior usage of the word “intermetallic.” Patent Owner argues that Petitioner’s construction “erases the meaningful distinction” between the claimed layers. PO Resp. 11. Patent Owner further argues that Petitioner’s construction renders the word “intermetallic” superfluous because allowing the intermetallic layer to be “merely a multi-element alloy erases the meaningful distinction among these layers.” Id. We disagree. The word intermetallic serves to require that the layer be composed of two or more metals or a metal and a metalloid. The word intermetallic also serves as a label to differentiate each of the four claimed layers. For example, in claim 1, the word “intermetallic” is used much like the words “interdiffusion” and “intermediate” to give each of the four layers (each having differently mean compositions) different labels.” slip op. at 16

    • Novelty / Anticipation (§102) › Prior-art status of a reference › Printed publication / public accessibilityPrinted publication establishedDecided for petitioner

      “Because IHS was a company that created an online database with the purpose of providing (selling) standards including General Motors standards to the public, we determine that a person of ordinary skill in the art would have known to look to this database and would have been able to find GMW14400. Patent Owner presents no evidence to the contrary. Because a preponderance of the evidence supports Petitioner, we determine Petitioner establishes GMW14400 is qualifies as prior art.” slip op. at 21

    Patent outcomesUS 11,326,227 unpatentable
    Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 11,326,227
  • Posco Co., Ltd. v. ArcelormittalAll claims unpatentable
    PTAB · Jul 16, 2026 · IPR2025-00370 · APJ Brian D Range · IPR · Final written decision

    Claims 1–30 are unpatentable as obvious under § 103 over the asserted combinations of prior art.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner contends that a person of ordinary skill in the art (POSITA) “would have had an undergraduate degree in materials science, manufacturing engineering, mechanical engineering, or equivalent knowledge, training, or experience, with two years of experience working in metallurgy.” Pet. 6 (citing Ex. 1003 ¶¶ 13–16). Patent Owner does not challenge Petitioner’s definition of a POSITA for this proceeding. PO Resp. 8. Because the parties agree and because Petitioner’s proposal is reasonable and consistent with the ’602 patent specification and the prior art, we adopt Petitioner’s proposal. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art may reflect an appropriate level of skill in the art).” slip op. at 8

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner

      “1. superficial layer All independent claims at issue, claims 1, 21, and 24, recite a “superficial layer.” Ex. 1001, 15:11, 16:60, 17:21. Patent Owner argues that, based on plain and ordinary meaning, the term “superficial layer” refers to a “surface layer” or “top layer.” PO Resp. 8–9. Petitioner does not dispute this construction. See Pet. Reply 21–22 (arguing that the relevant layer of the Suehiro reference is a superficial layer because it is outermost and present at the surface). Because the parties are in agreement and because that agreement is consistent with plain language, claim language, and the ’602 specification, we construe “superficial layer” as referring to a surface layer or top layer.” slip op. at 10

    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

      “defined stoichiometry” (Ex. 2037, 527) but the word may also be a “generic term for phases . . . which may have a narrow or extended compositional stability range” (id.). The first glossary meaning is consistent with Patent Owner’s position. The second, broader, glossary meaning is consistent with Petitioner’s position. Some of the sources before us support the broad definition, and some support the narrow definition. See PO Sur-Reply 3–4 (arguing that Dr. Miles admitted that various treatises distinguish intermetallic compounds from alloys and solid solutions) Thus, neither Dr. Miles or Dr. Raabe is “wrong scientifically” in how they use the term “intermetallic” in this proceeding. Id. at 2 (noting that Dr. Miles agreed that Dr. Raabe’s construction is not wrong scientifically). As explained below, however, only one of these meanings is appropriate here. To decide which possible meaning applies to the ’602 patent, we focus on the patent claims and specification. The claims indicate that the intermetallic layer has a “mean iron composition” (emphasis added). Ex. 1001, 15:6–10. This indicates, albeit weakly, that the iron composition across the layer may vary rather than having ordered stoichiometry— consistent with Petitioner’s position. The specification also indicates that “intermetallic alloying” is a possibility—again, consistent with Petitioner’s position. Id. at 2:50–54. Meanwhile, nothing in the ’602 specification explicitly (or implicitly) suggests that “intermetallic layer” must be limited to elements atomically joined with defined stoichiometry in an ordered crystal structure. We also find that Dr. Miles’s testimony regarding the meaning of “intermetallic” is more credible than Dr. Raabe’s testimony. Dr. Raabe, in deposition, stated that Figure 2 of the challenged patent “does not show a layer that meets [his] construction of intermetallic.” Ex. 1078, 129:21–24. The ’602 patent, however, states that Figure 2 includes an “Al-rich Intermetallic layer.” Ex. 1001, Fig. 2, 3:57–61 (“FIG 2. Illustrates a coating . . . which does not correspond to the invention. This succession of layers (interdiffusion layer and intermetallic layer) yields inferior results in resistance spot welding.”). Also, Dr. Raabe previously referred to a layer of Takagi as having “intermetallic phase layering and structure.” Pet. Reply 4 (citing Ex. 1076, 166; Ex. 1075, 17) (emphasis omitted). Thus, Dr. Raabe’s definition of “intermetallic” does not fully account for the ’602 patent usage of the word “intermetallic” and does not fully account for Dr. Raabe’s prior usage of the word “intermetallic.” Patent Owner argues that Petitioner’s construction “erases the meaningful distinction” between the claimed layers. PO Resp. 11. Patent Owner further argues that Petitioner’s construction renders the word “intermetallic” superfluous because allowing the intermetallic layer to be “merely a multi-element alloy erases the meaningful distinction among these layers.” Id. We disagree. The word intermetallic serves to require that the layer be composed of two or more metals or a metal and a metalloid. The word intermetallic also serves as a label to differentiate each of the four claimed layers. For example, in claim 1, the word “intermetallic” is used much like the words “interdiffusion” and “intermediate” to give each of the four layers (each having differently defined mean iron compositions) different labels.” slip op. at 16

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundDecided for petitioner

      “have had reason to combine teachings of Takagi and Cornette with a reasonable expectation of success. Pet. 11–20 (citing, e.g., Ex. 1003 ¶¶ 28– 42; Ex. 1016 ¶ 35; Ex. 1014, 9; Ex. 1025, 5:17–20; Ex. 1026, 7; Ex. 1034 ¶ 13). In particular, Petitioner argues that Takagi discloses a pre-coating thickness of 10–20 µm but does not explicitly disclose a post hot-stamping coating thickness corresponding to the pre-coating thickness. Pet. 11. Cornette teaches that the hot-stamping thickness causes coating expansion from 25 µm to about 40 µm, an increase of 60%. Id. (citations omitted). Petitioner and Dr. Miles reason that, when hot stamping Takagi’s product, the thickness would be 32 µm. Id. (citing Ex. 1003 ¶ 32); see also Pet. Reply 20–21. Thus, Patent Owner argues that Cornette evidences Takagi’s finally coating thickness without requiring modification of Takagi. Petitioner further argues that Takagi and Cornette teach that post hot- stamping thickness could be varied and optimized as a result effective variable. Id. at 12–13; see also Pet. Reply 17–18. Cornette teaches, for example, that “[t]he average [pre-coating] layer thickness showing the best compromise between corrosion protection and weldability is 25 µm” and links this pre-coating thickness to a final thickness of “about 40 µm at the steel surface.” Ex. 1014, 9. Petitioner also argues that it would have been obvious to fill in other details of Takagi including, for example, selecting USIBOR 1500 steel, based on the teachings of Cornette. Pet. 14. Patent Owner argues that there is no reason to combine Takagi with the teachings of Cornette. PO Resp. 26. Patent Owner makes seven related arguments. Patent Owner first argues that the Petitioner’s position is speculative and lacks basis. Id. at 26–27. We disagree. Cornette evidences a final coating thickness for Takagi, and the references also suggest that final coating thickness is result effective. Second, Patent Owner argues that there would have been no incentive to seek a motivation to seek a thicker coating post-hot stamping. Id. at 28– 35. This argument does not undermine Petitioner’s position that Takagi, by itself, would have reached a thicker coating after stamping as evidenced by Cornette. Pet. 11–12. Petitioner takes the position, with evidence, that practice of Takagi alone would reach the recited thickness. No motivation to modify Takagi is required under this position.” slip op. at 25

    Patent outcomesUS 10,961,602 unpatentable
    Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
    Patents in suitUS 10,961,602
  • PTAB · Jul 10, 2026 · IPR2025-00226 · APJ Matthew S Meyers · IPR · Final written decision

    Claims 1–5, 7, and 9 are unpatentable under §103 over Moskowitz and Steffee; the Board did not reach the Moskowitz-only ground and rejected the Hess ground.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner asserts that one of ordinary skill in the art would have had a bachelor’s or equivalent degree in mechanical engineering or a related discipline (e.g., biomedical or metals and materials engineering), and at least five years of experience consisting of (a) designing, developing, evaluating and/or using spine devices, (b) anatomy, physiology and biology of soft and calcified tissues including bone healing and fusion, and (c) biomechanical and functional loading of orthopedic implants. Pet. 17 (citing Ex. 1002 ¶ 49). Petitioner also asserts that “[m]ore education can supplement practical experience and vice versa.” Id. (citing Ex. 1002 ¶ 49). “Patent Owner does not dispute the proffered definition for a POSA.” PO Resp. 9. Based on the full record, we determine that Petitioner’s undisputed proposed level of skill is reasonable and consistent with the ’385 patent and the asserted prior art. Thus, for these reasons, we adopt Petitioner’s level of skill in the art.” slip op. at 8

    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

      “1. “channel” Throughout the challenged claims, “channel” appears together with “curved” in the term “curved channel.” For example, claim 1 recites “the fusion member comprising a first curved channel and a second curved channel,” “a first anchoring member configured to insert through the first curved channel,” and “second anchoring member configured to insert through the second curved channel.” Ex. 1001, 26:58–59, 26:60–61, 26:65– 66. Prior to institution, Petitioner asserted that one of ordinary skill in the art would “understand the claim term ‘channel’ to refer to a passage through which something moves or is conveyed.” Pet. 18 (citing Ex. 1002 ¶ 54). And, for purposes of our Decision on Institution, we adopted Petitioner’s proposed construction as being “consistent with the intrinsic record.” Institution Dec. 10. the ’385 [p]atent is readily understood by a POSA in context without needing explicit construction” and the plain and ordinary meaning should apply. PO Resp. 9–10. According to Patent Owner, the ’385 patent “consistently uses ‘channel’ to refer to a pathway within the fusion member through which an anchoring member traverses” and “explicitly states that channels may have different shapes and sizes and need not have a constant diameter, indicating the patentee did not intend to narrow the term beyond its common understanding.” Id. Petitioner replies noting that Patent Owner’s understanding “is substantively identical to Petitioner’s construction (‘a passage through which something moves or is conveyed’), specifically applied to an anchoring member.” Pet. Reply 6 (Pet. 18; PO Resp. 9–10). Thus, Petitioner concludes that “[t]he parties thus agree with the Board’s construction.” Id. Based on the full record, we agree with Petitioner that the parties’ positions on the meaning of the term “channel” are “substantively identical.” Because we see no difference between the parties’ position on the meaning of “channel,” we continue to adopt Petitioner’s proposed construction as it is consistent with the plain language of the claims and Specification. See Pet. 18 (citing Ex. 1001, 9:42–44, 9:53–55, 10:63–66, 11:47–63, 14:25–31, 14:65–67, 16:32–35, 22:51–57, 24:55–67) (The Specification uniformly refers to a “channel” as “a passage through which something (e.g., an anchoring member) traverses.”).” slip op. at 9

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable

      “between the spinous processes in order to decompress the spinal canal, and thus, “relieve pressure on the spinal cord and nerves by increasing the area of the spinal canal.” Ex. 1006, 1:32–34, 1:50–52, 2:1–6. In contrast, the ’385 patent identifies that “the goal is to achieve solid bony fusion between the involved endplates and eliminate the symptoms caused by motion and associated degenerative and other reactive changes between these unstable vertebral segments.” Ex. 1001, 1:53–57. Thus, Hess’s disclosed implant is designed to distract and stabilize the spinous processes, not to promote solid bony fusion between adjacent vertebral bodies. Consequently, we agree with Patent Owner that “converting Hess for intervertebral fusion would require eliminating its core dynamic stabilization functionality—directly contradicting Hess’s stated design objectives.” PO Resp. 42 (citing Ex. 1006, 2:5–26, 7:43–45). We also are not persuaded that Petitioner adequately explains why a person of ordinary skill would have modified Hess’s implant in the manner proposed. Petitioner contends that only “minimal modifications” to Hess’s shell dimension and shape would be required for intervertebral use. Pet. 61–67; Ex. 1002 ¶¶ 122–128. However, simply modifying the shape and size of Hess’s shell does not, without more, support a motivation to redesign Hess’s device from a posterior interspinous implant engaging spinous processes to an interbody implant positioned between vertebral bodies and anchored into vertebral bodies. Here, Hess discloses that modifying its dimensions serves to “preserv[e] mobility and alignment.” Ex. 1006, 7:5–7. Conversely, the ’385 patent’s fusion implant serves to limit mobility between vertebrae by achieving “solid bony fusion between the fusion member and the adjacent vertebral bodies.” Ex. 1001, 24:67–25:3. spinal fusion procedures” (id. at 6:49–52), we do not find that statement, without more, to disclose or suggest reconfiguring Hess’s interspinous implant as an “a fusion member configured to position between first and second vertebral bodies,” as required by limitation [1.1]. At most, Hess’s “adjunct to” statement suggests that the interspinous implant may be used in connection with, or in support of, a fusion procedure. It does not explain how or why Hess’s implant would be redesigned for placement between two adjacent vertebral bodies, nor does it teach that Hess’s locking wings would be reoriented or adapted to anchor into vertebral bodies rather than spinous processes. On this point, Mr. Culbert states that “[t]he only changes required to modify Hess for use as an intervertebral implant would be to modify the dimensions of Hess’s shell, which was ‘dimensioned and configured for placement between the spinous processes’” (Ex. 1002 ¶ 126 (citing Ex. 1006, 7:3–4)), but Mr. Culbert does not explain how Hess’s locking wings and guide tracks would be reoriented or adapted to function as anchoring members that are inserted into adjacent vertebral bodies rather as opposed to spinous processes. Instead, Mr. Culbert simply states that “Hess’s locking wings would engage and at least partially penetrate the superior and inferior adjacent vertebrae” (emphasis added) (Ex. 1002 ¶ 135) without explaining how or why one of ordinary skill in the art would have made the modification with a reasonable expectation of success.” slip op. at 17

    • Expert testimonyPetitioner expert discountedDecided for patent owner

      “modify Hess for use as an intervertebral implant would be to modify the dimensions of Hess’s shell, which was ‘dimensioned and configured for placement between the spinous processes’” (Ex. 1002 ¶ 126 (citing Ex. 1006, 7:3–4)), but Mr. Culbert does not explain how Hess’s locking wings and guide tracks would be reoriented or adapted to function as anchoring members that are inserted into adjacent vertebral bodies rather as opposed to spinous processes. Instead, Mr. Culbert simply states that “Hess’s locking wings would engage and at least partially penetrate the superior and inferior adjacent vertebrae” (emphasis added) (Ex. 1002 ¶ 135) without explaining how or why one of ordinary skill in the art would have made the modification with a reasonable expectation of success. Hess’s disclosure that its shell may have shape variations to match adjacent bone (Ex. 1006, 7:7–13) also does not adequately explain why a person of ordinary skill would have had a reason to redesign Hess’s device for a different intervertebral environment, or why such a redesign would and “anchoring members,” i.e., locking wings. And, to the extent Hess discloses matching the shell to “the profile of the adjacent bone when deployed” (Ex. 1006, 7:11–13), Hess never suggests adapting the shell for placement between two adjacent vertebral bodies or for use as a fusion cage, it discloses that the “shell 12 is dimensioned and configured for placement between the spinous processes of symptomatic disc levels” (id. at 7:2–4). Thus, we agree with Patent Owner that the proposed modification “minimizes the structural differences and conflicting functional objectives inherent in modifying a device intended for the posterior elements of the spine for use in the anterior load-bearing column” (emphasis omitted). PO Resp. 41. For the reasons discussed above, we determine that Petitioner’s reliance on Mr. Culbert’s testimony amounts to more than just providing a motivation to modify Hess. Here, it amounts to relying on expert testimony to supply a missing limitation. As such, Petitioner’s arguments are not persuasive to demonstrate that the prior art teaches the limitations of the claim by a preponderance of the evidence. See Xerox Corp. v. Bytemark, Inc., IPR2022-00624, Paper 9, 16 (PTAB Aug. 24, 2022) (precedential) (explaining that relying on expert testimony “is particularly problematic in cases where, like here, expert testimony is offered not simply to provide a motivation to combine prior-art teachings, but rather to supply a limitation missing from the prior art.”).” slip op. at 18

    Patent outcomesUS 8,460,385 unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,460,385
  • PTAB · Jul 10, 2026 · IPR2025-00225 · APJ Matthew S Meyers · IPR · Final written decision

    Claims 1–6, 11, 12, and 15–17 are unpatentable: claims 1–4, 6, 11, 12, 15, and 17 over Blain; claims 5 and 16 over Blain, Bray, and Steffee.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “Petitioner asserts that one of ordinary skill in the art would have had a bachelor’s or equivalent degree in mechanical engineering or a related discipline (e.g., biomedical engineering, metals and materials engineering), and at least five years of experience with a) designing, developing, evaluating and/or using spine devices, b) anatomy, physiology and biology of soft and calcified tissues including bone healing and fusion, and c) biomechanical and functional loading of orthopedic implants. Pet. 18–19 (citing Ex. 1002 ¶¶ 77–78). Petitioner also asserts that “[m]ore education can supplement practical experience and vice versa.” Id. (citing Ex. 1002 ¶ 78). “Patent Owner does not dispute the proffered definition for a POSA.” PO Resp. 10. proposed level of skill is reasonable and consistent with the ’805 patent and the asserted prior art. Thus, for these reasons, we adopt Petitioner’s level of skill in the art.” slip op. at 8

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownDecided for petitioner

      “Based on the full record, we determine that “housing,” as it appears in the context of the term “delivery housing” is a component that is a part of the delivery mechanism (see Ex. 1001, 11:27–31) and that simply contains and guides another component during delivery. See Ex. 1001, 13:25–27, 21:30–50. Thus, we apply the ordinary meaning of “housing,” as it appears in the context of the term “delivery housing,” and address in the context of “delivery housing,” as recited by claims 2 and 4.” slip op. at 12

    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

      “understanding of plain and ordinary meaning as set forth in the litigation.” Pet. Reply 13 (citing Ex. 1022, 2 (“channel . . . [that] has a curved path”)). Thus, Petitioner concludes that the parties agree on construction of “curved channel.” Id. at 13–14.10 9 Although the parties refer to “curved” alone or to a “curved channel,” we understand the parties to be referring to a “channel of the fusion member [that] is curved,” as recited in claims 5 and 16. 10 At oral argument, the parties confirmed that there was no dispute as to the meaning of “curved channel.” See Tr. 15:12–14 (Petitioner stating that “the term “curved channel” appears consistent with the plain language of the claims and Specification. Thus, we adopt the parties’ agreed-upon construction and construe a channel that is “curved” to mean a channel following a curved trajectory.” slip op. at 13

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

      “We have considered Petitioner’s arguments and evidence, and Patent Owner’s counterarguments and find, on the complete trial record, that Petitioner demonstrates, by a preponderance of the evidence, that Blain discloses “a fusion member for positioning between two vertebral bodies, the fusion member having a first plurality of channels, each channel of the first plurality of channels having an opening on a same side of the fusion member,” as recited by limitation 1.1. At the outset, we find Patent Owner fails to establish that any of the alleged differences between Blain’s “apertures and the ’805 [p]atent’s internal channel geometry” relate to any particular recitation in argued limitation 1.1. Although we acknowledge that claims 5 and 16 each requires curved trajectories (see, e.g., claim 5 reciting “each channel of the fusion member is curved”), limitation 1.1 does not recite such a feature. As Petitioner correctly notes, “[n]othing in the claim requires a special ‘internal channel geometry,’ ‘shaped block,[’] ‘curved tubular channels,’ non ‘straight-through’ apertures, or ‘flexible’ anchors.” Pet. Reply 14 (footnote omitted). See In re Self, 671 F.2d 1344, 1348 (CCPA 1982) (rejecting arguments “not based on limitations appearing in the claims”). Therefore, after reviewing the arguments and evidence, we determine that Petitioner has shown by a preponderance of the evidence that Blain discloses the subject matter of limitation 1.1.” slip op. at 19

    Patent outcomesUS 9,730,805 unpatentable
    Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,730,805
  • PTAB · Jun 30, 2026 · IPR2025-00169 · APJ Meredith C Petravick · IPR · Final written decision

    Claims 50–54 are unpatentable as obvious over KR996 and JP705; claims 55–63, 68, 69, and 80–85 were not shown unpatentable over KR996, JP705, Bares, and Beltrami.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner

      “(“This language is merely exemplary, using reference numerals to refer to the embodiment’s features and qualifying ‘single weldment’ as referring ‘generally’ to specific embodiments.”). The Iowa District Court reached the same conclusion. See Ex. 1020 at 4 (holding that “‘mainframe’ will be given its plain and ordinary meaning and does not require a single weldment” (emphasis added)), cited at Pet. Init. CC Br. 2; see also 37 C.F.R. § 42.100(b) (“Any prior claim construction determination concerning a term of the claim in a civil action, or a proceeding before the International Trade Commission, that is timely made of record in the inter partes review proceeding will be considered.”).” slip op. at 35

    • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness.” slip op. at 57

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed

      “e) Conclusion as to the Independent Claim 50 For the reasons discussed above, the evidence presented by Petitioner” slip op. at 67

    • ExcludeMotion to exclude, grantedGranted in part

      “For these reasons, we are persuaded by Petitioner to exclude, as” slip op. at 19

    Patent outcomesUS 9,321,386 mixed
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,321,386
  • PTAB · Jun 30, 2026 · IPR2025-00168 · APJ Meredith C Petravick · IPR · Final written decision

    The Board held claims 31–49, 70–79, 86, and 87 unpatentable under §103 over KR996 and JP705, with Bares added for claims 70–79.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner

      “Pet. Init. CC Br. 3 (stating that “by including the term ‘generally’ in a statement, the feature (i.e., single weldment) is expressly identified as merely included in some, but not all embodiments”); PO Init. CC Br. 3 (“This language is merely exemplary, using reference numerals to refer to the embodiment’s features and qualifying ‘single weldment’ as referring ‘generally’ to specific embodiments.”). The Iowa District Court reached the same conclusion. See Ex. 1020 at 4 (holding that “‘mainframe’ will be given its plain and ordinary meaning and does not require a single weldment” (emphasis added)), cited at Pet. Init. CC Br. 2; see also 37 C.F.R. § 42.100(b) (“Any prior claim construction determination concerning a term of the claim in a civil action, or a proceeding before the International Trade Commission, that is timely made of record in the inter partes review proceeding will be considered.”). Turning to the prosecution history, neither Petitioner nor Patent Owner has highlighted any specific statements that impact the scope of the term “mainframe.” And from our independent review, we do not discern any such statements. For these reasons, the intrinsic evidence as a whole supports construing “mainframe” as a primary supporting structure.” slip op. at 33

    • Skill levelOther

      “B. Level of Ordinary Skill in the Art The level of ordinary skill in the art is “a prism or lens” through which” slip op. at 20

    • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable
    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusDecided for petitioner

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness.” slip op. at 55

    Patent outcomesUS 9,321,386 unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,321,386
  • PTAB · Jun 30, 2026 · IPR2025-00167 · APJ Meredith C Petravick · IPR · Final written decision

    Claims 1–13, 21, 22, 64, and 65 are unpatentable over the asserted grounds; claims 15, 17, 19, 20, 23–30, 66, and 67 were not shown unpatentable over KR996, JP705, and Beltrami.

    RulingsFinal written decision
    • ExcludeMotion to exclude, deniedDenied

      “B. Analysis “The moving party has the burden of proof to establish that it is” slip op. at 9

    • Skill levelOther

      “B. Level of Ordinary Skill in the Art We review the grounds of unpatentability in view of the” slip op. at 21

    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownPrior construction adoptedDecided for petitioner

      “lexicographical, we agree with the parties that “mainframe” is not limited to a single weldment. Pet. Init. CC Br. 1; PO Init. CC Br. 1–2. Instead, a single-weldment “mainframe” is merely one disclosed embodiment. See Pet. Init. CC Br. 3 (stating that “by including the term ‘generally’ in a statement, the feature (i.e., single weldment) is expressly identified as merely included in some, but not all embodiments”); PO Init. CC Br. 3 (“This language is merely exemplary, using reference numerals to refer to the embodiment’s features and qualifying ‘single weldment’ as referring ‘generally’ to specific embodiments.”). The Iowa District Court reached the same conclusion. See Ex. 1020 at 4 (holding that “‘mainframe’ will be given its plain and ordinary meaning and does not require a single weldment” (emphasis added)), cited at Pet. Init. CC Br. 2; see also 37 C.F.R. § 42.100(b) (“Any prior claim construction determination concerning a term of the claim in a civil action, or a proceeding before the International Trade Commission, that is timely made of record in the inter partes review proceeding will be considered.”).” slip op. at 33

    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusDecided for petitioner

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness.” slip op. at 55

    Patent outcomesUS 9,321,386 mixed
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,321,386
  • PTAB · Jun 30, 2026 · PGR2025-00016 · APJ Eric C Jeschke · PGR · Final written decision

    Claims 4–14 are unpatentable: claims 4 and 7–12 as anticipated by KR996, claims 5–6 as obvious over KR996 and JP705, and claims 13–14 as obvious over KR996 and Bares.

    RulingsFinal written decision
    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundUnpatentable

      “2. The Reasons to Combine KR996 and JP705 Petitioner provides reasons to combine KR996 with JP705. See” slip op. at 73

    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusObjective indicia outweighedDecided for petitioner

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness.” slip op. at 53

    • ExcludeMotion to exclude, grantedGranted in part

      “For these reasons, we are persuaded by Petitioner to exclude, as” slip op. at 27

    Patent outcomesUS 12,098,063 unpatentable
    § 103 obviousnesscites Phillips
    Patents in suitUS 12,098,063
  • PTAB · Jun 30, 2026 · IPR2025-00381 · APJ Eric C Jeschke · IPR · Final written decision

    Claims 1–10 are unpatentable: claims 1–8 and 10 are anticipated by KR996, and claim 9 is obvious over KR996 and Bares.

    RulingsFinal written decision
    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

      “2. Independent Claim 1 Petitioner contends that KR996 both anticipates and renders obvious independent claim 1. Pet. 23–46. To support its arguments, Petitioner identifies certain passages in the cited references and explains the significance of each passage with respect to the corresponding claim limitation. Id. Patent Owner argues that KR996 does not disclose a “loader support” and thus fails to disclose limitations requiring “linkage[s]” and an “actuator” attached to the “loader support.” See PO Resp. 37–40; PO Sur-reply 20. In addition, Patent Owner presents evidence of objective indicia of nonobviousness. See PO Resp. 51–68; PO Sur-reply 23–27. We address each issue in turn. a. The Loader Support Limitations Claim 1 recites, in relevant part, “[1.3] a loader support having a first side and a second side . . . ; [1.5] a first linkage connected to the first side of the loader support . . . ; [1.6] a second linkage connected to the first side of the loader support . . . ; [1.7] a second actuator for raising the loader, the second actuator being connected to the loader support.” Ex. 1001, 6:56, 6:60–7:1 (collectively, the “loader support limitations”). As to the recitation of “a loader support having a first side and a second side,” Petitioner provides the following annotated version of Figure 9 of KR996: Pet. 30. In the annotated version of Figure 9 of KR996 above, Petitioner added (1) red text and arrows identifying a “loader support,” a “first side of loader support,” and a “second side of loader support” and (2) blue text identifying a “loader.” Id. Petitioner adds that “the loader support includes the portions of the frame of the KR996 vehicle that when in operation, support the attached loader unit 40 having loader arms of the booms 44.” Pet. 29. Petitioner also states that “KR996’s loader support includes the bracket to which the link 45 and boom cylinder 46 attach, as well as the frame protrusion, connected to the bracket, to which the forward link attaches.” Id. (citing Velinsky Pet. Decl. ¶ 72).” slip op. at 32

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundUnpatentable

      “2. Dependent Claim 9 Petitioner contends that KR996, modified based on Bares, satisfies the additional limitations of claim 9. Pet. 60–69. To support its arguments, Petitioner identifies certain passages in the cited references and explains the significance of each passage with respect to the corresponding claim limitation. Id. Petitioner also articulates reasons to combine the relied-upon aspects of KR996 and Bares and explains why there would have been a reasonable expectation of success. Pet. 62–65. Patent Owner argues that one of ordinary skill in the art would not have had reason to combine KR996 and Bares. See PO Resp. 41–50; PO Sur-reply 22–23. Patent Owner also relies on its prior arguments that KR996 does not disclose the “loader support” limitations in independent claim 1. See PO Resp. 50. In addition, Patent Owner relies on the same evidence of objective indicia of nonobviousness discussed above. See PO Resp. 51–68; PO Sur-reply 21–27. We address each issue in turn. a. The Reasons to Combine KR996 and Bares Petitioner presents reasons why one of ordinary skill in the art would have combined KR996 and Bares and why the proposed combination would have had a reasonable expectation of success. See Pet. 62–65; Velinsky Pet. Decl. ¶¶ 157–162. After discussing why KR996 and Bares are analogous art to the claimed invention, Petitioner states that one of ordinary skill in the art “would have been motivated to combine the teachings of Bares with KR996 to produce a predictable and beneficial configuration of a tracked vehicle” in that “[t]he simple substitution of Bares’ track assembly for the wheels in the KR996 vehicle would have been predictable with a reasonable expectation of success that both KR996 and Bares relate to similar vehicle types with a similar mainframe having a drive mechanism attached thereto.” Pet. 63 (citing Velinsky Pet. Decl. ¶¶ 158–162). Petitioner asserts that “designing this vehicle type with a drive” slip op. at 64

    • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness. In order to accord substantial weight to secondary considerations in an obviousness analysis, “the evidence of secondary considerations must have a ‘nexus’ to the claims, i.e., there must be ‘a legally and factually sufficient connection’ between the evidence and the patented invention.” Henny Penny Corp. v. Frymaster LLC, 938 F.3d 1324, 1332 (Fed. Cir. 2019) (quoting Demaco Corp. v. F. Von Langsdorff Licensing Ltd., 851 F.2d 1387, 1392 (Fed. Cir. 1988)); Quanergy Sys., Inc. v. Velodyne Lidar USA, Inc., 24 F.4th 1406, 1417 (Fed. Cir. 2022). Although the patent owner bears the initial burden of proving a nexus (WMS Gaming Inc. v. Int’l Game Tech., 184 F.3d 1339, 1359 (Fed. Cir. 1999)), a presumption of nexus may be appropriate if the patent owner shows “the asserted objective evidence is tied to a specific product and that product ‘embodies the claimed features, and is coextensive with them.’” Polaris Indus, Inc. v. Arctic Cat, Inc., 882 F.3d 1056, 1072 (Fed. Cir. 2018) (quoting Brown & Williamson Tobacco Corp. v. Philip Morris Inc., 229 F.3d 1120, 1130 (Fed. Cir. 2000) (emphasis added)); Quanergy, 24 F.4th at 1417. On the other hand, “[w]hen the [product] is not coextensive with the patented invention—for example, if the patented invention is only a component of a commercially successful machine or process,” the patent owner is not entitled to a presumption of nexus. Demaco, 851 F.2d at 1392. A patent owner may establish nexus, either through (1) the use of a rebuttable presumption that arises when certain conditions are met or (2) a direct showing of nexus. In the first, a patent owner may rely on a rebuttable presumption of nexus as follows:” slip op. at 43

    • ExcludeMotion to exclude, grantedMotion to exclude, deniedGranted in part

      “2. Analysis “The moving party has the burden of proof to establish that it is entitled to the requested relief.” 37 C.F.R. § 42.20. Exhibit 1005 is an English language translation of Korean Patent No. 10-1041996. Exhibit 1006 is an English language translation of Japanese document JP2004-17705A. Exhibit 1014 is an English language translation of Korean Patent No. 10-1023528. A Certification of Translation signed by Takashi Maeshiro of HC Language Solutions, Inc., accompanies each of Exhibits 1005, 1006, and 1014. Ex. 1005 at 28; Ex. 1006 at 16; Ex. 1014 at 16. Each Certification of Translation is worded substantially the same except for the references to the document at issue and the source language being either Korean or Japanese. Exhibit 1005’s Certification of Translation, for example, states: I, Takashi Maeshiro, on behalf of HC Language Solutions, Inc., do solemnly and sincerely declare, to the best of my knowledge and belief, that the attached text represents a translation of Korean Patent No. 10-1041996, that the translation was performed by HC Language Solutions, Inc., and that the translation represents a true, correct, and faithful translation from Korean to English in a form that reflects the intention and meaning of the original text. I hereby declare that all statements made herein of my own knowledge are true and that all statements made on information and belief are believed to be true; and further that these statements were made with the knowledge that willful false statements and the like so made are punishable by fine or imprisonment, or both, under Section 1001 of Title 18 of the United States Code. Ex. 1005 at 28 (emphasis added).” slip op. at 17

    Patent outcomesUS 11,465,891 unpatentable
    § 102 anticipation§ 103 obviousnesscites Phillips · KSR
    Patents in suitUS 11,465,891
  • PTAB · Jun 30, 2026 · IPR2025-00171 · APJ Eric C Jeschke · IPR · Final written decision

    Claims 1–13 and 28 are unpatentable over KR996; claims 14–16 and 19–27 were not shown unpatentable over Bares and Beltrami.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for petitioner

      “(“This language is merely exemplary, using reference numerals to refer to the embodiment’s features and qualifying ‘single weldment’ as referring ‘generally’ to specific embodiments.”). The Iowa District Court reached the same conclusion. See Ex. 1020 at 4 (holding that “‘mainframe’ will be given its plain and ordinary meaning and does not require a single weldment” (emphasis added)), cited at Pet. Init. CC Br. 2; see also 37 C.F.R. § 42.100(b) (“Any prior claim construction determination concerning a term of the claim in a civil action, or a proceeding before the International Trade Commission, that is timely made of record in the inter partes review proceeding will be considered.”). Turning to the prosecution history, neither Petitioner nor Patent Owner has highlighted any specific statements that impact the scope of the term “mainframe.” And from our independent review, we do not discern any such statements. For these reasons, the intrinsic evidence as a whole supports construing “mainframe” as a primary supporting structure.” slip op. at 35

    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusNot shown unpatentable

      “probative and cogent evidence in the record” and “may often establish that an invention appearing to have been obvious in light of the prior art was not.” Transocean Offshore Deepwater Drilling, Inc. v. Maersk Drilling USA, Inc., 699 F.3d 1340, 1349 (Fed. Cir. 2012). Thus, notwithstanding what the teachings of the prior art would have suggested to one skilled in the art, secondary considerations (objective evidence of non-obviousness) may lead to a conclusion that the challenged claims would not have been obvious. In re Piasecki, 745 F.2d 1468, 1471–72 (Fed. Cir. 1984). Our obviousness analysis includes consideration and weighing of Patent Owner’s objective indicia of non-obviousness.” slip op. at 54

    • ExcludeMotion to exclude, grantedMotion to exclude, deniedGranted in part

      “For these reasons, we are persuaded by Petitioner to exclude, as” slip op. at 28

    Patent outcomesUS 10,202,266 mixed
    Claim construction§ 103 obviousnesscites Phillips
    Patents in suitUS 10,202,266

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.