- Billerud Aktiebolag (Publ) v. Westrock MWV, LLCSome claims unpatentablePTAB · Mar 12, 2025 · IPR2023-01206 · APJ Elizabeth M Roesel · IPR · Final written decision
Claims 1, 2, and 4–22 are unpatentable as obvious; claim 23 was not shown unpatentable. Substitute claims 25–26 are allowed, while 24 and 27 are denied for lack of written-description support.
RulingsFinal written decision- Expert testimonyPetitioner expert discountedOther
“Exhibits 1013 and 1014 are also not admissible as expert testimony because Mr. Wirén is not “qualified as an expert by knowledge, skill, experience, training, or education.” Fed. R. Evid. 703. “To offer expert testimony from the perspective of a skilled artisan in a patent case—like for claim construction, validity, or infringement—a witness must at least have ordinary skill in the art. Without that skill, the witness’ opinions are neither relevant nor reliable.” Kyocera Senco Indus. Tools Inc. v. Int’l Trade Comm’n, 22 F.4th 1369, 1376–77 (Fed. Cir. 2022). Mr. Wirén does not meet our definition of a person of ordinary skill in the art. See Section II.B, supra. That definition is based on the undisputed testimony of Messrs. Zotterman and Klass. Ex. 1003 ¶ 24; Ex. 2003 ¶ 26. Although Mr. Wirén has a Master’s of Science in chemical engineering, he lacks any experience or specialization in paperboard manufacturing. Ex. 2011, 12:1–10, 19:6–25, 20:2–7. We therefore agree with Patent Owner that Exhibits 1013 and 1014 are the testimony of Mr. Wirén and should be excluded from evidence because Mr. Wirén is not a person of ordinary skill in the relevant art. PO MTE 5–6, 9; Sundance, Inc. v. DeMonte Fabricating Ltd., 550 F.3d 1356, 1362 (Fed. Cir. 2008) (“Unless a patent lawyer is also a qualified technical” slip op. at 61
- Skill levelSkill level board ownOther
“Level of Ordinary Skill in the Art Based on the testimony of the parties’ witnesses, we determine that a person of ordinary skill in the art would have had a bachelor’s degree in paper science and engineering, chemical engineering, process engineering, mechanical engineering, or a related degree, with three to five years of experience in paperboard manufacturing, or a master’s degree in paper science and engineering, chemical engineering, process engineering, or mechanical engineering, or a similar field with a specialization in paperboard manufacturing. Ex. 1003 ¶ 24; Ex. 2003 ¶ 26. We find that the level of ordinary skill in the art, as articulated above, is consistent with the level of technical understanding and competence reflected in the ’142 Patent Specification and the asserted prior art references.” slip op. at 10
- Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageTerm construed petitioner constructionDecided for petitioner
“A claim construction that excludes a particular element is viewed as a “negative limitation.” Ethicon LLC v. Intuitive Surgical, Inc., 847 Fed. App’x 901, 907 (Fed. Cir. Mar. 15, 2021). “[S]uch exclusions must find support either in ‘the words of the claim’ or through an ‘express disclaimer or independent lexicography in the written description that would justify adding that negative limitation.’” Id. (citing Omega Eng’g, Inc. v. Raytek Corp., 334 F.3d 1314, 1323 (Fed. Cir. 2003); CCS Fitness, Inc. v. Brunswick Corp., 288 F.3d 1359, 1366–67 (Fed. Cir. 2002)). “The standards for finding lexicography and disavowal are exacting.” GE Lighting Sols., LLC v. AgiLight, Inc., 750 F.3d 1304, 1309 (Fed. Cir. 2014). “To act as its own lexicographer, a patentee must ‘clearly set forth a definition of the disputed claim term,’ and ‘clearly express an intent to define the term.’” Id. (citing Thorner, 669 F.3d at 1365). Similarly, disclaimer or disavowal requires that the specification or prosecution history demonstrate that the invention does not include a particular feature. Id. Here, we find no claim language, lexicography, or disclaimer in the ’142 Patent or its file history that would support defining a “hot-hard calender” as requiring that only one of the two rollers be heated to an elevated temperature.” slip op. at 12
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundUnpatentable
“a contact surface of said thermo-roller is heated to an elevated temperature of at least 250°F.” Petitioner shows persuasively that the temperature limitation is taught by the combination of Fugitt and Papermaking. Pet. 32–34. Fugitt discloses that “[t]he rolls of the calender may be steam heated.” Ex. 1004 ¶ 26. In a section titled “Heated Rolls,” Papermaking discloses that “Steam can be used up to 170°C [338°F] surface temperature.” Ex. 1010, 95, 98. Petitioner is thus correct that, “[w]hile Fugitt teaches that a hot calender may be steam heated, Papermaking clarifies that one of ordinary skill in the art would understand that steam heated thermo-rollers may reach up to 338°F.” Pet. 36. Based on these disclosures, we are persuaded by Mr. Zotterman’s testimony that it would have been “obvious to heat the thermo-roller of Fugitt to at least 250°F.” Ex. 1003 ¶ 159. combine Fugitt and Papermaking because of Papermaking’s status as a “trusted handbook[],” because both references disclose a method of manufacturing a paperboard structure with hot calendering,” and “because of the known advantages of heated rollers.” Pet. 36–37; Ex. 1003 ¶¶ 157, 159, 162. Petitioner’s contention is supported by Papermaking’s disclosures that, for cartonboard, “[p]recalendering is used before the coater to reduce roughness and porosity” and “[h]igh thermo roll temperatures (in some cases over 200°C) result in bulk savings because of the temperature gradient.” Ex. 1005, 80–82; see also Pet. 38; Ex. 1003 ¶ 164 (citing these disclosures). Papermaking’s disclosed range of “up to 170°C [338°F]” for steam- heated rolls (Ex. 1010, 98), overlaps the claimed range of “at least 250°F.” Patent Owner agrees. Tr. 27:11–13. “If the relevant comparison between a disputed claim limitation and the prior art pertains to a range of overlapping values, ‘. . . even a slight overlap in range establishes a prima facie case of obviousness.’” Genentech, Inc. v. Hospira, Inc., 946 F.3d 1333, 1341 (Fed. Cir. 2020) (citing In re Peterson, 315 F.3d 1325, 1329 (Fed. Cir. 2003)). “[S]uch an overlap creates a presumption of obviousness, and . . . the burden of production falls upon the patentee to come forward with pertinent evidence that the overlapping range would not have been obvious in light of the prior art.” Id. (citing E.I. DuPont de Nemours & Co. v. Synvina C.V., 904 F.3d 996, 1006, 1008 (Fed. Cir. 2018)). slip op. at 21
Patent outcomesUS 11,293,142 mixedClaim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · GrahamPatents in suitUS 11,293,142 - Coxcom, LLC v. Joao Control & Monitoring Systems, LLCSome claims unpatentablePTAB · Feb 15, 2017 · IPR2015-01762 · APJ Beth Z Shaw · IPR · Final written decision
Claims 1, 3–5, 8, 13–17, 20, and 84–86 are unpatentable as obvious over Koether and Crater; claim 44 was not shown unpatentable on that ground.
RulingsFinal written decision- PTAB / AIA Trials › Real party in interest / privityRpi dispute resolved for petitionerDecided for petitioner
“owner must provide sufficient rebuttal evidence to bring reasonably into question the accuracy of Petitioner’s identification of RPIs.” See Office Patent Trial Practice Guide, 77 Fed. Reg. 48,680, 48,695 (Aug. 14, 2012). Whether a non-party is a real party in interest is a “highly fact-dependent question” that is addressed on a “case-by-case” basis. See 77 Fed. Reg. 48,759. “A common focus of the inquiry is . . . whether the non-party exercised or could have exercised control over a party’s participation in a proceeding.” Id. The concept of control means that “the non-party ‘had the opportunity to present proofs and argument’ . . . or ‘to direct or control the content’ of the filing.” JP Morgan Chase & Co., et al. v. Maxim Integrated Prods., Inc., Case CBM2014-00179, slip op. at 10 (PTAB Feb. 20, 2015) (Paper 11) (“JP Morgan”). “‘The evidence as a whole must show that the non-party possessed effective control over a party’s conduct of the [proceeding] as measured from a practical, as opposed to a purely theoretical standpoint.’” Id. (quoting Gonzalez v. Banco Cent Corp., 27 F.3d 751, 759 (1st Cir. 1994)).” slip op. at 5
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Ex. 1001, Abst. It describes the relevant problems encountered in the art as those involved in the control, monitoring, or security of vehicles or premises, in a network environment. Id. at 1:20–52; 3:12–21. The ’363 patent is not directed to specific issues associated with electrical circuits or electrical connections between devices. The Specification identifies no specific problem that stems from the apparatus being a particular type of electrical device. From this evidence, we conclude that a person of ordinary skill in the art with respect to the ’363 patent would be skilled in the field of networked systems. For the foregoing reasons, we are not persuaded that the level of ordinary skill in the art requires specific coursework or education in the form of a degree in electrical engineering. Instead, we are persuaded by Petitioner’s statement of the level of ordinary skill in the art, and our finding of the level of ordinary skill is similar to that proposed by Petitioner, but with a slight modification, i.e., that a basic level of experience is required, at the level of at least two years of experience in networked systems. We find that the level of ordinary skill in the art is that of one having at least two years of working experience with networked systems. A more advanced degree would be paired with a shorter period of working experience.” slip op. at 9
- Expert testimonyPetitioner expert creditedDecided for petitioner
“Patent Owner has not articulated a persuasive reason for giving Mr. Bennett’s testimony little or no weight. Moreover, as discussed above, we are not persuaded that a person of ordinary skill in the art of the ’363 patent would be required to have a specific degree or coursework in electrical engineering. We are, thus, not persuaded that Mr. Bennett’s answers, during deposition, to questions about his background are wrong or that the entirety of his testimony should be given little or no weight based on this testimony.” slip op. at 10
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed patent owner constructionDecided for patent owner
“For purposes of the Decision to Institute, we construed the terms “remote,” “premises,” and “located at.” Dec. 8–9. We reviewed and adopted Patent Owner’s explicit definitions for these terms, which Patent Owner provided in the prosecution of the application that issued as the ’363 patent. Dec. 8 (citing Ex. 2002). Based on our review of the full record, we discern no reason to modify or further discuss in this Final Written Decision our constructions for these claim terms. For convenience, these claim constructions are reproduced in the table below. Term Citations Construction Remote Ex. 2002, “‘Remote’ means ‘separate and apart from, or 10–11 external from, or at a distance from or distant from, or not located in.’” Premises Ex. 2002, 8– “‘Premises’ means ‘a building or a structure 9 and the grounds or parcel of land associated with the building or the structure, or a building or structure or a portion, room, or office, of or in the building or structure, or a home, mobile home, mobile building, mobile structure, residence, residential building, office, commercial building, commercial office, structure, equipment, facility, machine, rig, assembly line, or edifice.’” Located at Ex. 2002, 8 “‘Located at’ means ‘situated at, or situated in, or situated on.’”” slip op. at 12
Patent outcomesUS 7,397,363 mixedClaim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSRPatents in suitUS 7,397,363
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.