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Patent Trial and Appeal Board Prior Art Corporate Counsel

A&O Shearman

The Federal Circuit Rejects PTAB’s Use Of Traditional Construction Of “Consisting Essentially Of”

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On June 30, 2025, the U.S. Court of Appeals for the Federal Circuit vacated a decision by the U.S. Patent Trial and Appeal Board (the “Board”) and remanded the case for further proceedings using a narrower construction of the...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Holds Applicant Admitted Prior Art Cannot Form “Part of the Basis” of an IPR Ground, Reversing a PTAB Win for...

The Federal Circuit recently reversed a PTAB determination on remand that a patent was obvious over applicant admitted prior art (“AAPA”) in combination with prior art patents, holding that expressly designating AAPA as a...more

A&O Shearman

Federal Circuit Affirms Patent Trial And Appeal Board Decision, Finding Claims Of Patents Covering CRISPR Guide RNA Technology As...

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On June 11, 2025, the United States Court of Appeals for the Federal Circuit affirmed the Patent Trial and Appeal Board (PTAB) decision invalidating two patents owned by Agilent Technologies. The patents at issue, U.S. Patent...more

Volpe Koenig

When an IDS Comes Back to Haunt You: Lessons from iRhythm v. Welch Allyn

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Patent attorneys are well-versed in the function of the Information Disclosure Statement (IDS) during prosecution. We understand that listing prior art in an IDS satisfies the duty of candor, helps insulate patents from...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2024 PTAB Year in Review: Analysis & Trends

The Patent Trial and Appeal Board (PTAB) continues to play a pivotal role in shaping the intellectual property landscape. In 2024, several developments affecting PTAB practice emerged, from new rulemaking at the USPTO to key...more

Pillsbury Winthrop Shaw Pittman LLP

Preclusion Confusion: Federal Circuit Decision in ZyXEL Communications v. UNM Rainforest Sparks Uncertainty at the PTAB

In ZyXEL, the petitioner unexpectedly received a second chance to argue against the patentability of the patentee’s substitute claims, even though the U.S. Patent Trial & Appeal Board (PTAB) had already found those claims...more

Jones Day

En Banc Federal Circuit Questions Standard for Design Patent Obviousness

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Changes to design patent validity law may be coming thanks to LKQ v. GM, a case that we’ve been tracking since April 2021. On February 5, 2024, in a rare en banc hearing, the Court of Appeals for the Federal Circuit asked...more

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Holds Operating Manuals Disclosed with Confidentiality Restrictions to be Prior Art

On February 8, in Weber, Inc. v. Provisur Technologies, Inc., the Federal Circuit reversed the Patent Trial and Appeal Board (PTAB) and held that Weber’s operating manuals are prior art printed publications despite their...more

Quarles & Brady LLP

Design Patents are Heating Up at the Federal Circuit, Again

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Last week, in a precedential decision, the U.S. Court of Appeals for the Federal Circuit (“Federal Circuit”) clarified the law on comparison prior art in design patent cases. In the decision, captioned Columbia Sportswear...more

Haug Partners LLP

Federal Circuit Underscores the Importance of Complying With PTAB Procedural Rules in Parus Holdings v. Google

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The Federal Circuit’s recent precedential decision in Parus Holdings v. Google underscores the importance of complying with the PTAB’s procedural rules in an IPR and the potentially serious consequences of not doing so. The...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Federal Circuit Precedential Opinion Sheds Light on Importance of Issues Presented On Appeal

In a precedential opinion issued last month, the Court of Appeals for the Federal Circuit (“Federal Circuit”) held that when the single issue presented on appeal is whether a prior art reference teaches a particular claim...more

Fitch, Even, Tabin & Flannery LLP

IP Alert: Federal Circuit Holds Priority Documents Lack Direction to Support Claims

On March 6, in Regents of the University of Minnesota v. Gilead Sciences, Inc., the Federal Circuit affirmed a decision by the Patent Trial and Appeal Board (PTAB) in an inter partes review (IPR) invalidating claims of the...more

Jones Day

Error Apparent? Federal Circuit Tackles Obvious Errors in Prior Art

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In LG Electronics v. Immervision, the Federal Circuit clarified the standard for evaluating whether a prior art reference includes an obvious typographical error. See 39 F.4th 1364, 1365 (Fed. Cir. 2022). Under this...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

Fitch, Even, Tabin & Flannery LLP

IP Alert: Federal Circuit Nixes Admitted Prior Art as Basis for IPR

On February 1, in Qualcomm Inc. v. Apple Inc., the Federal Circuit held that Apple could not base an inter partes review (IPR) challenge of a Qualcomm patent solely on “applicant admitted prior art” (AAPA) found in the patent...more

Fitch, Even, Tabin & Flannery LLP

Recent Federal Circuit Decisions Find Many Internet Documents Are “Printed Publications”

The Federal Circuit has recently provided substantial guidance on whether printed publications include documents publicly available via the internet. This article reviews four such cases that illustrate the expansive view...more

Fitch, Even, Tabin & Flannery LLP

Indefiniteness Does Not Necessarily End PTAB’s Patentability Inquiry

On December 28, in Intel Corp. v. Qualcomm Inc., the Federal Circuit held that the Patent Trial and Appeal Board (PTAB) may not decline to consider the patentability of a claim challenged in an inter partes review (IPR)...more

Haug Partners LLP

Failure to Show a Reasonable Expectation of Success Dooms Obviousness Allegations

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In Teva Pharmaceuticals USA, Inc. v. Corcept Therapeutics, Inc.,1 the Federal Circuit affirmed the obviousness analysis performed by the Patent Trial and Appeal Board (“PTAB”), which found that Corcept’s patent for methods of...more

Morgan Lewis

Federal Circuit Narrows Scope of Prior Art Available for Design Patents

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The US Court of Appeals for the Federal Circuit’s recent decision on an appeal from the Patent Trial and Appeal Board to limit prior art for design patent applications to only analogous fields may make it easier for...more

Jones Day

CAFC: Nearly Identical Reference is Prior Art

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In the recent precedential Federal Circuit decision Valve Corporation v. Ironburg Inventions Ltd., No. 2020-1315, 2020-1315, 2020-1379, 2021 WL 3628664 (Fed. Cir. August 17, 2021), the Federal Circuit ruled on an issue that...more

Jones Day

Fed. Cir.: Don’t Expect PTAB to Do Your Work For You

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The Federal Circuit’s recent decision in Microsoft Corporation v. FG SRC, LLC, No. 2020-1928 (Fed. Cir. June 17, 2021), is a stark reminder that an IPR petitioner must always set forth its grounds in its petition with...more

Morgan Lewis

2020 PTAB Digest: The Latest Trends and Developments in Post-Grant Proceedings

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As of 2020, post grant proceedings have been in use for eight years. Designed as an alternative to district court litigation post grant proceedings have offered litigants a faster and more cost effective forum for resolving...more

Haug Partners LLP

How Different Claim Construction Standards Can Ultimately Determine the Validity of a Patent

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Recently, the Federal Circuit issued a decision in Immunex Corp. v. Sanofi-Aventis U.S. LLC addressing the different claim construction standards used by the Patent Trial and Appeal Board (“PTAB”) (broadest reasonable...more

Akin Gump Strauss Hauer & Feld LLP

PTAB: Inadvertent Mistake in Analysis of Experimental Data that Substantially Impacts Proceeding Cannot be Corrected

The PTAB recently denied a motion to correct clerical mistakes under 37 C.F.R. § 42.104(c) because the corrections presented substantive new evidence that would have had a substantial impact on the proceedings and prejudiced...more

Akin Gump Strauss Hauer & Feld LLP

PTAB Ruling Highlights a Petitioner’s Burden for Qualifying an Internet Screenshot as a “Printed Publication”

In a recent decision issued in Louisiana-Pacific Corp. v. Huber Engineered Woods LLC, the Patent Trial and Appeal Board addressed the showing that a petitioner for inter partes review must make to demonstrate that an asserted...more

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