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No One Likes a Sore Winner: IPR Prevailing Party Can’t Appeal

by | Mar 23, 2023 |

Reaffirming precedent, the US Court of Appeals for the Federal Circuit reiterated the rule that the prevailing party in an inter partes review (IPR) cannot appeal a Patent Trial & Appeal Board decision. Termax Co. v. Illinois Tool Works, Inc., Case Nos. 23-1252; -1254 (Fed. Cir. Mar. 8, 2023) (Dyk, Reyna, Chen, JJ.)

Illinois Tool Works (ITW) asserted that Termax had infringed a patent directed to an automobile fastener. Termax challenged the asserted patent by filing a petition for IPR. The petition was granted, and ultimately the Board agreed with Termax that all the challenged claims of ITW were unpatentable. Both parties appealed.

ITW moved to voluntarily dismiss its own appeal and to dismiss Termax’s cross-appeal. Termax opposed, arguing that the Board erred in its construction of certain claim limitations that have also been incorporated into a new ITW patent.

The Federal Circuit dismissed both appeals. Citing what it called a “familiar rule,” the Court stated that the winner in a lower court or other tribunal cannot ordinarily seek relief in the appellate court. The Court was not persuaded by Termax’s argument that the Board erred in its construction of certain claim limitations, noting that Termax sought to appeal the constructions in the hopes that a Federal Circuit decision in its favor would “collaterally estop Illinois Tool Works from asserting those newly issued claims.” However, the Court refused to hear the appeal prematurely, stating that if ITW asserts the claims of its new patent against Termax in the future, Termax can address the issue at that time.

Practice Note: While an IPR can be a powerful tool for accused infringers, it is not without future risks.



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A Maze-Like Path and Laundry List Don’t Provide Written Description

by | Mar 16, 2023 |

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) decision that there was insufficient written description in the asserted priority applications to support a genus claim because of a lack of ipsis verbis disclosure and insufficient blaze marks. The Court concluded that the priority applications did not support an early priority date. Regents of the University of Minnesota v. Gilead Sciences, Inc., Case No. 21-2168 (Fed. Cir. March 6, 2023) (Lourie, Dyk, Stoll, JJ.)

Gilead filed a petition for inter partes review (IPR) challenging Minnesota’s patent directed to phosphoramidate prodrugs preventing virus reproduction or cancerous tumor growth. Gilead’s US Food & Drug Administration-approved drug, sofosbuvir, is marketed by Gilead to treat chronic hepatitis C infections and falls within claim 1 of the patent.

The 2014 application that issued as the challenged patent claimed priority to four applications. In the IPR, Gilead argued that the claims were anticipated by a Gilead-owned patent publication (Sofia). The publications used in the decision are as follows:

NP3 and NP2 have the same disclosure. NP2 and P1 contain similar disclosures, which the Board called NP2-P1. The broader claim in NP2-P1 has a relationship of genus to the narrower subgenus claims in the patent at issue. There was no dispute that Sofia disclosed every limitation of each challenged claim. The Board held that NP2-P1 failed to provide a sufficient written description to support the asserted priority date of the challenged claims, which were therefore found to be anticipated by Sofia. Minnesota appealed.

Minnesota argued the following to the Federal Circuit:

  • The Board erred in holding that the NP2-P1 applications have insufficient written description.
  • The Board ran afoul of Administrative Procedure Act (APA) requirements.
  • Minnesota is a sovereign state entity immune from IPR.

35 U.S.C. § 120 sets forth requirements for a patent application to benefit from a filing date of an earlier application. Minnesota asserted that the NP2-P1 priority applications literally described or provided blaze marks to the challenged subgenus claims. The Federal Circuit disagreed, explaining that written description for a genus claim of chemical compounds raises “particular issues,” requiring a description of the outer limits of the genus and either a representative number of members or structural features common to the members of the genus. The Court found that the asserted priority applications (NP2-P1) did not provide such description and the challenged claims were not entitled to the filing dates of those applications.

The Federal Circuit found that the asserted priority applications did not provide ipsis verbis disclosure of the challenged subgenus claim. The Court quoted an oft-noted saying associated with Yogi Berra, a catcher for the New York Yankees some 50 years ago, about a notable failure to provide direction: “when one comes to a fork in the road, take it.” The Court also cited its 1996 decision in [...]

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Compelling Clarity: PTO Director Explains Compelling Merits Test

by | Mar 9, 2023 |

US Patent & Trademark Office (PTO) Director Katherine K. Vidal issued a precedential opinion clarifying the standard under which the Patent Trial & Appeal Board (Board) can institute on an inter partes review (IPR) petition despite the Fintiv factors militating toward denial. CommScope Techs. LLC v. Dali Wireless, Inc., IPR2022-01242 (PTO Feb. 27, 2023) (Vidal, Dir.) (precedential).

This opinion follows the Director’s Interim Procedure for Discretionary Denials memorandum (Guidance Memo) and her opinion in OpenSky Indus. v. VLSI Tech. In the guidance memo, the Director explained that when there is “compelling evidence of unpatentability,” the Board may decline to exercise its discretion to deny IPR institution.

In this case, Dali Wireless sued CommScope in the district court, alleging infringement of its patent. CommScope filed a petition to institute an IPR proceeding against the asserted patent. The Board granted the petition and instituted an IPR proceeding while the district court litigation was ongoing.

In granting the petition, the Board acknowledged that it would normally perform a Fintiv analysis to determine whether it should deny the petition in light of the parallel district court proceeding. However, considering the Guidance Memo and the “compelling invalidity challenge” presented by the petitioner, the Board skipped the Fintiv analysis and instituted on the petition. The Director instituted sua sponte review.

Recognizing some ambiguity in both OpenSky and the guidance memo, the Director made her decision precedential to clarify:

My Guidance Memo states that “the PTAB will not deny institution based on Fintiv if there is compelling evidence of unpatentability.” Although I now recognize that this instruction could be read to allow for a compelling merits determination as a substitute for a Fintiv analysis, that was not my intent. By that instruction, I intended for PTAB panels to only consider compelling merits if they first determined that Fintiv factors 1–5 favored a discretionary denial . . . . In circumstances where . . . the Board’s analysis of Fintiv factors 1–5 favors denial of institution; the Board shall then assess compelling merits. In doing so, the Board must provide reasoning sufficient to allow the parties to challenge that finding and sufficient to allow for review of the Board’s decision.

A determination of whether the petition presents a compelling merits case for invalidity requires a merits case that meets a higher standard than the “reasonable likelihood” test required by 35 U.S.C. § 314(a).

The Director found that the Board’s decision was deficient in both parts of the analysis. The Board did not perform any analysis of the Fintiv factors but instead went straight to a determination of whether the petition presented a compelling invalidity challenge. In connection with that determination, the Board failed to provide any reasoning that explained why it found the merits case presented in the petition compelling.

Finding that the Board’s reasoning was conclusory, the Director vacated the Board’s decision to institute IPR review and remanded for further proceedings consistent with her decision.

Practice Note: Less [...]

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PTO Introduces Trademark Decisions and Proceedings Search Tool

by | Mar 2, 2023 |

On February 17, 2023, the US Patent & Trademark Office (PTO) announced the launch of the new Trademark Decisions and Proceedings Search Tool. This tool allows users to filter and search expungement and reexamination proceedings, administrative orders and sanctions, and precedential director decisions. Under the Expungement and Reexamination Proceedings tab, users can find all petitions filed by third parties requesting expungement or reexamination, as well as director-initiated proceedings and reexaminations. The Administrative Orders and Sanctions tab includes administrative and sanctions orders issued under the authority of the PTO Director against parties found to violate PTO trademark rules of practice or terms of use for PTO websites and filing systems.  Decisions on petitions to the PTO Director will be added to the search tool later in 2023.

The Trademark Decisions and Proceedings Search Tool can be found here.



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You Can’t Skirt around Obviousness by Arguing Expectation of Success Must Be Absolute

by | Feb 16, 2023 |

Affirming an obviousness decision by the Patent Trial & Appeal Board (Board), the US Court of Appeals for the Federal Circuit explained that the expectation of success need only be reasonable and not absolute. Transtex Inc. v. Vidal, Case No. 20-1140 (Fed. Cir. Feb. 3, 2023) (Prost, Reyna JJ.) (Schall, J. dissenting).

Transtex makes aerodynamic trailer skirts, which improve fuel efficiency by reducing air drag. Transtex sued WABCO in the US District Court for the Eastern District of Michigan, alleging that WABCO’s trailer skirts infringed several Transtex patents. WABCO responded by filing two inter partes review (IPR) petitions, one of which was against a patent with claims directed to “resilient” trailer skirts and the “resilient” struts used to attach them to a trailer.

WABCO argued that the challenged claims of the patent were obvious over a combination of the Layfield and Rinard references. WABCO submitted expert declarations stating that a person of ordinary skill in the art would have recognized that Layfield’s rigid struts could benefit from being constructed of resilient, more flexible material. Accordingly, a skilled artisan would have been motivated to look to other, similar types of trailer components that are also flexible—like that disclosed in Rinard—to improve upon Layfield’s rigid struts. WABCO successfully relied on much of the same expert testimony to argue that a skilled artisan would also have enjoyed a reasonable expectation of success in combining the more rigid struts of Layfield with the compressible materials taught in Rinard because Rinard taught the utility of having compressible “air scoops” at the tail end of a trailer, which would compress downwards when the trailer contacted a loading dock.

The Board agreed with WABCO and found the challenged claims obvious. According to the Board, Layfield taught all of the claim limitations except for a “resilient strut” that could flex both toward the center of the trailer and away from the center of the trailer and then regain its shape while Rinard taught the benefits of using compressible air scoops made out of a resilient material as part of a trailer skirt system. The Board also concluded that a skilled artisan would have been motivated to combine Layfield with Rinard and would have had a reasonable expectation of success, given the predictable nature of the field. Transtex appealed.

The Federal Circuit affirmed, finding that substantial evidence in the form of expert testimony supported the Board’s finding that although Layfield taught a more rigid strut instead of a resilient strut as claimed, a skilled artisan would have been motivated to combine Layfield’s strut with the resilient materials disclosed in Rinard and would have enjoyed a reasonable expectation of success when doing so. The Court concluded that this was a case where the evidence of motivation to combine, which “everyone agrees meets the substantial evidence threshold,” significantly overlapped with the evidence relating to a reasonable expectation of success, so it was correct to conclude that a skilled artisan would have reasonably expected the resiliency benefit that motivated them to combine [...]

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Bursting the Bubble on Prosecution Delays

by | Jan 26, 2023 |

Addressing a case where a patent owner filed hundreds of applications as part of a strategy to maintain extraordinarily lengthy patent coverage, the US Court of Appeals for the Federal Circuit affirmed a district court’s determination that the patent owner had engaged in a calculated and unreasonable scheme to delay patent issuance. Personalized Media Comms., LLC v. Apple Inc., Case No. 21-2275 (Fed. Cir. Jan. 7, 2023) (Reyna, Chen, JJ.) (Stark, J., dissenting).

The Uruguay Round Agreements Act and General Agreement on Tariff and Trade (GATT) amended the US patent term to 20 years from the effective filing date, instead of 17 years from the issue date. GATT took effect on June 8, 1995. In the months leading up to GATT’s enactment, some would-be patentees seeded patent applications with tremendous disclosures to anchor future applications and obtain the longer pre-GATT term. Practitioners referred to this time period as the GATT bubble. Personalized Media Communications (PMC) submitted 328 GATT bubble applications, from which PMC sought somewhere between 6,000 and 20,000 patent claims. The term of these patents would be 17 years from their issue date instead of 20 years from their priority date.

PMC asserted that Apple’s FairPlay digital rights management software infringed a patent covering a decryption method and won a jury verdict of $330 million. After the verdict, the district court held a bench trial and ultimately found that the patent was unenforceable because of prosecution laches, a doctrine that bars the assertion of patents where the patentee caused unreasonable delay in obtaining the patent, to the detriment of the accused infringer. PMC appealed.

The Federal Circuit affirmed. First, it examined whether the district court had properly concluded that PMC unreasonably delayed. Based on a wide swath of record evidence, all three panel members—Judges Reyna, Chen and Stark—agreed that, like the patentee in Hyatt v. Hirschfeld, PMC had engaged in an intentional scheme to delay patent issuance and extend its monopoly. PMC tried to distinguish its case from Hyatt by arguing that it had developed, with the US Patent & Trademark Office, a consolidation procedure to prioritize review of certain applications. The Court concluded that the structure of the agreement still unreasonably drew out resolution of PMC’s applications, however. The Court also approved of the district court’s reasoning based on the number of applications filed and the introduction of new (albeit narrowing) elements to the claims 16 years after the priority date.

Turning to prejudice, the Federal Circuit concluded that the district court did not act improperly in determining that the delay and improper conduct continued to harm Apple up through the filing of suit in 2015. The Court found that the patent had issued based on a pending claim that PMC did not disclose during PMC-Apple license negotiations and which PMC could quickly get granted and assert against Apple.

Judge Stark dissented, stating that he would conclude that the prejudice Apple faced did not happen during the period in which PMC unreasonably delayed issuance. Judge [...]

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Full Speed Ahead: District Court Entitled to Explore Litigation Funding Arrangements

by | Dec 15, 2022 |

The US Court of Appeals for the Federal Circuit denied a patent owner’s mandamus petition, clearing the way for a district court to probe who is funding the patent owner’s infringement litigation. In re Nimitz Techs. LLC, Case No. 23-103 (Fed. Cir. Dec. 8, 2022) (Lourie, Reyna, Taranto, JJ.) (per curiam) (nonprecedential).

Nimitz filed a complaint for patent infringement against Buzzfeed in the US District Court for the District of Delaware. The case was assigned to Chief Judge Connelly. Judge Connelly has two standing orders that require parties to disclose third-party litigation funders and the name of every individual and corporation with a direct or indirect ownership interest in the party. Nimitz filed a disclosure statement identifying Mark Hall as the sole owner and LLC member of Nimitz, and a statement representing that Nimitz has not entered any arrangement with third-party funders.

The district court later became aware that an entity called IP Edge was arranging assignments of patents to various LLCs that were plaintiffs in other actions before the district court. Based on the review of the documents in the other cases, it appeared to the district court that Hall had a connection with IP Edge. The district court ordered Hall and Nimitz’s counsel to appear at a hearing. During the hearing, the district court explored the relationship between Nimitz and an entity called Mavexar. After the hearing, the district court ordered production of communications between Hall, Mavexar and IP Edge, and communication and documents relating to the formation of Nimitz, Nimitz’s assets, Nimitz’s potential scope of liability resulting from the acquisition of the patent, the settlement or potential settlement of the cases and the prior evidentiary hearing. The district court also ordered production of monthly bank statements from Nimitz. Nimitz appealed to the Federal Circuit by filing a petition for writ of mandamus seeking an order vacating the district court’s order.

The Federal Circuit initially stayed the district court’s order pending the Court’s decision. While the mandamus petition was pending, the district court issued a memorandum explaining that the records sought in its prior order were relevant to addressing several concerns, including the following:

  • Compliance with the Rules of Professional Conduct
  • Compliance with the district court’s orders
  • Determining whether real parties in interest other than Nimitz, such as Mavexar and IP Edge, were hidden from the Court and the defendants
  • Determining whether those real parties in interest perpetrated a fraud on the district court by fraudulently conveying to a shell LLC the patent-in-suit and filing a fictitious patent assignment with the US Patent & Trademark Office designed to shield those parties from the potential liability they would otherwise face in asserting the patent in litigation.

Nimitz had argued that the district court’s order was improper because it would require disclosure of highly confidential litigation materials, including material protected by the attorney-client privilege and work-product immunity. In its decision on mandamus, the Federal Circuit rejected that argument, finding that the district court order made clear that Nimitz [...]

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No Mulligans Here: PTO Rewinds Reexamination Based on Estoppel

by | Dec 8, 2022 |

The US Patent & Trademark Office (PTO) terminated a pending ex parte reexamination after finding that the challenger was estopped because the prior art references could have been raised in a prior inter partes review (IPR). In re Tyler, Reexam. No. 90/014,950 (PTO Nov. 15, 2022).

In 2017, GITS Manufacturing filed two IPR petitions against a patent owned by G.W. Lisk after Lisk asserted the patent against GITS in district court. In 2018, the Patent Trial & Appeal Board issued final written decisions in each IPR, finding some claims unpatentable and maintaining the patentability of other claims. The Federal Circuit affirmed both IPR decisions in 2021.

In February 2022, the PTO initiated an ex parte reexamination of one of the patents based on a request filed by GITS. The reexamination proposed multiple grounds of unpatentability based on four prior art references that were not involved in the IPRs. GITS included a lengthy discussion and an expert declaration describing the prior art searches GITS performed in support of the certification that it was not estopped under 35 U.S.C. § 315(e)(l) from asserting the grounds in the reexamination. Lisk filed a petition to vacate the reexamination proceeding, alleging that GITS was estopped because the reexamination references reasonably could have been raised in the previous IPRs. Lisk’s petition was supported by its own expert declaration describing prior art searches that a skilled searcher would have conducted.

A party is estopped under § 315(e)(1) from requesting a reexamination proceeding based on grounds that the party “raised or reasonably could have raised” during an IPR. The legislative history of § 315(e) defines “reasonably could have raised” as “prior art which a skilled searcher conducting a diligent search reasonably could have been expected to discover.” The PTO cited legislative history stating that “reasonably could have raised” does not require a “scorched-earth search,” leaving open the possibility that a diligent search may not discover a particular reference. But the PTO also distinguished the search an examiner or lawyer may conduct from the more robust search that a skilled searcher is assumed to conduct prior to filing a petition for a IPR proceeding.

The PTO evaluated each of the four references in GITS’s reexamination grounds based on the criteria described above. Two of the references were patent documents available in commercial databases that a skilled searcher could be expected to find. The third reference was a “seminal textbook” that GITS itself stated was used in the field to train those of skill in the art. The textbook reference was also found through standard citation searching of the patent at issue. The fourth reference was provided by a publisher that GITS stated “was an established publisher that was well known to those interested in the field,” and which maintained an online searchable database of its publications. The PTO determined that the fourth reference would have been found by a reasonably diligent search, despite the fact that a subscription fee was required to search the database.

The PTO also weighed [...]

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Another Kind of Term Limit: Delay Resulting from After-Allowance Amendments Deducted from PTA

by | Nov 17, 2022 |

The US Court of Appeals for the Federal Circuit affirmed the US Patent & Trademark Office’s (PTO) decision on a patent term adjustment (PTA), finding that it was appropriate to deduct days from a patent term when the applicant files an amendment after notice of allowance and could have completed prosecution earlier by withdrawing the amendment or abstaining from filing it in first instance. Eurica Califorrniaa v. Vidal, Case No. 22-1640 (Fed. Cir. Nov. 7, 2022) (Lourie, Dyk, Hughes, JJ.) (per curiam) (non-precedential).

Eurica Califorrniaa is the sole inventor of a patent application entitled “nondestructive means of ectopic pregnancy management,” which was filed on March 15, 2014. Near the close of an extended patent prosecution, the examiner identified minor additional changes to the claim language of the patent application that would place it in position for allowance. The examiner unilaterally made the amendments and provided Califorrniaa a notice of allowance. In response, Califorrniaa requested an interview with the examiner and provided a list of further proposed amendments that included changes to the examiner’s amended claim limitations as well as substantive changes unrelated to the Examiner’s Amendments. Following the interview, Califorrniaa formally submitted his proposed amendments for the examiner’s consideration. As a result, the PTO deducted 51 days from the adjusted patent term of the patent to account for the time it took the examiner to consider and accept Califorrniaa’s post-allowance amendments. Califorrniaa appealed the PTO’s calculations, first to the district court (which affirmed the PTO) and then to the Federal Circuit.

The PTO may extend the nominal 20-years-from-filing patent terms to account for each day of delay attributable to the PTO, minus the number of days of delay attributable to an applicant’s failure to engage in reasonable efforts to conclude prosecution. Congress has granted the PTO authority to define when this “reasonable efforts” standard is not met, and the PTO has created regulations to address the issue. In 2019, the Federal Circuit issued its decision in Supernus v. Iancu, finding that the PTO failed to properly consider whether the applicant reasonably engaged in efforts to conclude prosecution. In response, the PTO adjusted its regulations to distinguish between post-allowance amendments expressly requested by the PTO and those voluntarily made by the applicant, and to change the relevant timeframe for the calculation of a reduction in PTA. The PTO’s regulations state, in part, that an applicant’s decision to amend their patent application after the examiner has issued a notice of allowance is not a reasonable effort to conclude prosecution.

Unlike its ruling in Supernus, where no identifiable effort to conclude prosecution existed, here the Federal Circuit agreed with the PTO’s finding that Califorrniaa could have, at any time, withdrawn his post-allowance amendments and accepted the examiner’s amendments to conclude prosecution. As such, an “identifiable effort” existed by which Califorrniaa could have avoided additional delay and concluded prosecution. Therefore, the Court affirmed the 51-day deduction of the patent term.

The Federal Circuit also found that the PTO’s post-Supernus updates to [...]

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PTO Requests Comments on Initiatives to Expand Board Opportunities, Registration to Practice Criteria

by | Oct 20, 2022 |

In a pair of notices, the US Patent & Trademark Office (PTO) announced on October 18, 2022, that it is seeking public input on proposed initiatives directed at expanding opportunities to appear before the Patent Trial & Appeal Board, (Board) and expanding admission criteria for registration to practice in patent cases before the PTO. PTO Director Kathi Vidal explained that “[t]hese proposals are part of our broader initiatives to improve quality and participation.”

Regarding the expansion of opportunities to appear before the Board, the PTO requested comments on the following six questions:

  1. Are there any changes to Board rules or procedures that the PTO or the Board should make to increase opportunities to appear and/or serve as counsel and/or the lead counsel in America Invents Act (AIA) proceedings?
    1. If “yes” to question 1 as to the lead counsel, should the rules require that a non-registered practitioner have prior experience in AIA proceedings and/or have completed training before being designated as the lead counsel? What level of experience and/or type of training should be required?
  2. Should any rule or procedure revised by the PTO that permits a non-registered practitioner to be designated as the lead counsel in an AIA proceeding also require that any such non-registered practitioner be accompanied by a registered practitioner as backup counsel? If not, are there any circumstances or events that might occur during an AIA proceeding (g., the contemplated or actual filing of a motion to amend) that might warrant requiring a registered practitioner to then appear as backup counsel?
  3. Would a rule requiring that the lead counsel or backup counsel in an AIA proceeding be a registered practitioner have a significant impact on the cost of such a proceeding? If so, what would the impact be and would the impact be justified?
  4. Should any of the changes discussed above, if adopted, be implemented as a pilot program?
  5. Are there additional training and/or development programs the PTO should offer to increase opportunities for less experienced practitioners to appear as counsel and/or serve as the lead counsel in AIA proceedings?
  6. Are there any changes to the Legal Experience and Advancement Program (LEAP) that the PTO should make to increase opportunities to appear and/or serve as the lead counsel in AIA proceedings?

Regarding expanding the admission requirements to practice in patent matters before the PTO, comments on the following five topics were requested:

  1. The General Requirements Bulletin (GRB) lists three categories of scientific and technical qualifications typically used for eligibility for admission to the registration examination: (1) Category A, for specified bachelor’s, master’s and PhD degrees; (2) Category B, for other bachelor’s, master’s and PhD degrees with technical and scientific training; and (3) Category C, for individuals who rely on practical engineering or scientific experience and have passed the Fundamentals of Engineering test. The PTO is seeking comments as to acceptable degrees and whether it should add Category B degrees on a predetermined timeframe (g., every three years).
  2. Should the PTO accept [...]

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