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Inter Partes Review (IPR) Proceeding Patent Litigation CAFC

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Qualcomm Inc. v. Apple Inc.

Qualcomm Inc. v. Apple Inc., Appeal Nos. 2023-1208, -1209 (Fed. Cir. Apr. 23, 2025) - For a second time in this case, the Federal Circuit considered the proper role of “Applicant Admitted Prior Art” in an inter partes...more

Venable LLP

Regeneron and Biocon Settle Litigation over EYLEA® Biosimilar Yesafili™

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On April 15, 2025, Biocon announced it reached a settlement agreement with Regeneron, dismissing CAFC Appeal No. 24-2002 and Case No. 1:22-cv-00061 (N.D.W. Va.) / MDL 1:24-md-03103 (N.D.W. Va.) and allowing the...more

A&O Shearman

Federal Circuit Affirms PTAB Decision On Unpatentability, With The PTO Stepping In After Appellee Withdrew

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On April 15, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) affirmed the Patent Trial and Appeal Board’s (“Board”) decision finding all challenged claims of Sage Products, LLC’s patents anticipated based on...more

McDermott Will & Emery

The Clear and Unmistakable Standard for Applying Prosecution Disclaimer

The US Court of Appeals for the Federal Circuit found that a district court misconstrued claim terms based on a misapplication of the clear and unequivocal disavowal standard and vacated its noninfringement decision. Maquet...more

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

2024 Design Patents Year in Review: Analysis & Trends

As we predicted in our 2023 report, 2024 was a banner year for design rights in the U.S. and elsewhere. In last year’s report, we noted that the U.S. Court of Appeals for the Federal Circuit (CAFC) agreed to consider en banc...more

A&O Shearman

Federal Circuit Affirms PTAB Unpatentability Findings Regarding Network Security Patents

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On October 31, 2024, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) issued an opinion affirming the final written decisions of the Patent Trial and Appeal Board (“PTAB”) finding that two of Centripetal Network,...more

A&O Shearman

Platinum Optics Tech. Inc. v. Viavi Sols. Inc.

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In Platinum Optics Tech. Inc. v. Viavi Sols. Inc., the U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision on the requirements for standing to appeal from an inter partes review (IPR) final...more

Irwin IP LLP

Standing in Limbo: What Platinum Optics v. Viavi Tells Us About IPR Appeals 

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Platinum Optics Tech. Inc. v. Viavi Solutions Inc., 2024 WL 3836107 (Fed. Cir. 2024) - On August 24, 2024, the United States Court of Appeals for the Federal Circuit (CAFC) dismissed an appeal for lack of standing after a...more

Fenwick & West LLP

En banc Hearing Petition Filed on Recent Fed. Circ. Collateral Estoppel Decision

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The Court of Appeals for the Federal Circuit has sparked debate following a recent ruling on the Patent Trial and Appeal Board's (PTAB) application of estoppel provisions in invalidating amended claims in inter partes...more

A&O Shearman

Standing & Product Development: Platinum Optics Tech. Inc. v. Viavi Sols. Inc.

A&O Shearman on

In Platinum Optics Tech. Inc. v. Viavi Sols. Inc., the U.S. Court of Appeals for the Federal Circuit (CAFC) issued a precedential decision on the requirements for standing to appeal from an inter partes review (IPR) final...more

A&O Shearman

Federal Circuit Provides Guidance On Estoppel Provision Under 37 C.F.R. § 42.73(d)(3)(i)

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On July 26, 2024, the Court of Appeals for the Federal Circuit (“CAFC”) issued a precedential opinion reversing-in-part decisions from the U.S. Patent Trial and Appeal Board (“PTAB”) in two inter partes reexamination...more

Dinsmore & Shohl LLP

Estoppel Principles in Patent Office Proceedings

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On July 26, 2024, in a precedential decision, the U.S. Court of Appeals for the Federal Circuit (CAFC) upheld and expounded on the estoppel provision set forth in 37 C.F.R. § 42.73(d)(3)(i). The CAFC confirmed that the Patent...more

Jones Day

Another Bite? CAFC Allows Expansion of Arguments in Reply

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In a recent decision, the Federal Circuit found no abuse of discretion by the Board when it allowed Apple to expand its analogous art contention in its IPR reply, finding that the Board’s decision did not run afoul of the...more

Irwin IP LLP

CAFC Holds Priority Favors True Trailblazers, Not Maze-Like Paths Through a Forest of Prior Applications: Regents of the...

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The Court of Appeals for the Federal Circuit (“CAFC”) recently upheld a decision of the Patent Trial and Appeal Board (“PTAB”) that found some claims of U.S. Patent 8,815,830 (“the ’830 patent”) unpatentable as anticipated....more

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

In Hunting Titan v. DynaEnergetics, Federal Circuit Affirms Precedential Opinion Panel But Avoids Ruling on a Standard for Sua...

In 2018, Hunting Titan, Inc. filed a petition for inter partes review (“IPR”) of U.S. Patent No. 9,581,422 (“the ’422 patent”), which is owned by DynaEnergetics Europe GmbH, a manufacturer of industrial explosives. In...more

Troutman Pepper Locke

Federal Circuit Clarifies Scope of IPR Estoppel

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Parties filing inter partes review (IPR) petitions should be aware of the estoppel implications on subsequent or parallel proceedings, including litigation pending in U.S. federal district courts. The U.S. Court of Appeals...more

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

In Qualcomm v. Apple, Federal Circuit Rules Out Applicant Admitted Prior Art As the “Basis” for Inter Partes Review

On the first of February, in Qualcomm Inc. v. Apple Inc., the Court of Appeals for the Federal Circuit (“the CAFC”) vacated and remanded the Patent Trial and Appeal Board (“the Board”) on two inter partes review (“IPR”)...more

Jones Day

CAFC Holds Applicant Admitted Prior Art Cannot be the Basis of an IPR Ground

Jones Day on

Section 311(b) limits inter partes review to “ground[s] that could be raised under section 102 or 103 and only on the basis of prior art consisting of patents or printed publications.” 35 U.S.C. § 311(b) (emphasis added). An...more

Jones Day

Ho, Ho, No: CAFC Delivers Reversal, Vacatur, and Remand in Christmas Tree Row

Jones Day on

The Federal Circuit recently issued another decision in a longstanding dispute between Willis Electric Co. and Polygroup Ltd. involving two patents owned by Willis (U.S. Patent Nos. 8,454,186 and 8,454,187) directed to...more

WilmerHale

CAFC Patent Cases - April 2021

WilmerHale on

Precedential Federal Circuit Opinions - ..WI-LAN INC. v. SHARP ELECTRONICS CORPORATION [OPINION]  (2020-1041, April 6, 2021) (DYK, TARANTO, and STOLL) - Dyk, J.  Affirming related district court judgments holding...more

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

Uniloc v. Facebook: Federal Circuit Rules Against a Finding of Estoppel in Joinder

Earlier this month, in the precedential decision Uniloc 2017 LLC v. Facebook Inc., the Court of Appeals for the Federal Circuit (“the CAFC”) upheld the Patent Trial and Appeal Board (“the Board”) on the issue of estoppel (or...more

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

Mixed Result in M&K Holdings v. Samsung Electronics: Federal Circuit Finds Anticipation not Necessarily Inherent in Obviousness...

Earlier this month, in the precedential decision M & K Holdings v. Samsung Electronics Co., the Court of Appeals for the Federal Circuit (“the CAFC”) upheld the Patent Trial and Appeal Board (“the Board”) in finding certain...more

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

ABS Global v. Cytonome/St, LLC: Mootness and Preserving the Argument for Vacatur

In 2017, Cytonome filed suit in the Western District of Wisconsin (“the District Court”), accusing ABS of infringing six of its patents, including US Patent No. 8,529,161 (“the ’161 patent”). Subsequently, in October 2017,...more

Mintz - Intellectual Property Viewpoints

Fox Factory v. SRAM – According to CAFC, No Presumption of Nexus for Bicycle Chainring Patents; IPR Decision Reversed and Remanded

On December 18, 2019, the United States Court of Appeals for the Federal Circuit, in Fox Factory v. SRAM, Nos. 2018-2024 and 2018-2025, reversed the Board’s Final Written Decision in a pair of inter partes reviews (“IPRs”)...more

Mintz - Intellectual Property Viewpoints

Relying on Outside Prior Art in an IPR – Not so fast!

The Court of Appeals for the Federal Circuit (CAFC) has recently reminded the Patent Trial and Appeal Board (the Board) that it may not rely on evidence and arguments that fall outside the scope of the instituted grounds...more

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