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Patent Litigation Inter Partes Review (IPR) Proceeding Claim Construction

Sheppard Mullin Richter & Hampton LLP

Breaking Down the Bifurcated PTAB Review Process: What the USPTO’s Recent FAQ Drop Reveals

On March 26, 2025, the U.S. Patent and Trademark Office released a memorandum introducing a new interim process for handling institution decisions in inter partes reviews (IPRs) and post-grant reviews (PGRs). The Office just...more

Jones Day

PTAB Institutes IPR Despite Concurrent Ex Parte Reexamination

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In Thermaltake Technology Co., Ltd. et al v. Chien-Hao Chen et al, IPR2024-01230, Paper 12 (PTAB Feb. 19, 2025), the PTAB granted the institution of inter partes review (“IPR”) while an ex parte reexamination (“EPR”) on the...more

Jones Day

PTAB Allows Three Concurrent IPR Petitions for Unusual Patent Claims

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Recently, the Patent Trial and Appeal Board (“the Board”) was persuaded to consider the merits of three out of seven concurrent petitions for an inter partes review of a single patent due to the patent’s complicated claiming...more

McDermott Will & Emery

Transatlantic Terminology: Skilled Artisan Could Equate UK, US Word Meanings

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The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board unpatentability determination, finding that a skilled artisan would have found the term “sterile” in a UK publication to mean the same as...more

Proskauer - The Patent Playbook

Federal Circuit Affirms Stem Cell Product-by-Process Claims: Lessons in Claim Construction and Inherency from Restem LLV v. Jadi...

The Federal Circuit issued a precedential opinion on March 4, 2025, that serves as valuable guidance for product-by-process claims, particularly in the context of inherency in claim construction. In Restem, LLC v. Jadi Cell,...more

Knobbe Martens

No Error: The Board Committed No Procedural Error by Relying on Evidence Outside of the Prior Art Reference

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SAGE PRODUCTS, LLC v. STEWART [OPINION] - Before Reyna, Cunningham, and Stark. Appeal from the United States Patent and Trademark Office, Patent Trial and Appeal Board. The Board did not abuse its discretion by relying on...more

McDonnell Boehnen Hulbert & Berghoff LLP

Sage Products, LLC v. Stewart (Fed. Cir. 2025)

When a prevailing challenger withdraws from an appeal in post-grant proceedings, the Director can intervene under 35 U.S.C. § 143, which is what happened in an appeal in Sage Products, LLC v. Stewart after Challenger Becton...more

Jones Day

Expert Testimony Supporting POPR Can Be An Effective Strategy

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It is relatively uncommon for parties to submit expert declarations in the preliminary-response phase of an IPR proceeding, but recently the Patent Owner in Imperative Care, Inc. v. Inari Medical, Inc. effectively used that...more

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - April...

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Rituximab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Patterson Belknap Webb & Tyler LLP

“Not That Kind of Memory Storage – Judge Oetken Grants Samsung’s Motion for Summary Judgment of Non-Infringement”

On March 31, 2025, Judge Oetken granted summary judgment for Samsung Electronics Co., Ltd. and certain of its subsidiaries (“Samsung”) in an infringement suit brought against it by Dynamics Inc. (“Dynamics”). Dynamics Inc v....more

Sheppard Mullin Richter & Hampton LLP

Don’t Get Lazy, Timely Complete Your Arguments

This Federal Circuit Opinion analyzes statutory estoppel under 35 U.S.C. § 315(e)(1) and examines offensive and defensive arguments related to § 103 obviousness.  Gesture Technology Partners, LLC is the owner of U.S....more

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

Understanding the PTAB’s Recent Informative Decision: Cambridge Mobile Telematics, Inc. v. Sfara, Inc.

The Patent Trial and Appeal Board (PTAB) recently designated its decision in Cambridge v. Sfara (IPR2024-00952) as an informative decision.[1] This designation addresses an important issue in inter partes review (IPR)...more

Jones Day

Provisionals’ Disclosures Must Fully Support an Issued Claim for Pre-AIA Priority

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The PTAB recently provided a pre-AIA priority analysis for reference patents in Roku, Inc. v. Anonymous Media Research Holdings, LLC, No. IPR2024-01057, Paper 10 (P.T.A.B. Feb. 10, 2025). This decision highlights the...more

Knobbe Martens

Federal Circuit Review | March 2025

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Limits of Inherent Anticipation in Product-by-Process Claims - In Restem, LLC v. Jadi Cell, LLC, Appeal No. 23-2054, the Federal Circuit held that inherency in product-by-process claims requires the prior art to inevitably...more

McDonnell Boehnen Hulbert & Berghoff LLP

Recor Medical, Inc. v. Medtronic Ireland Mfg. (Fed. Cir. 2025)

The inter partes review provisions of the Leahy-Smith America Invents Act have been criticized for the propensity of the Patent Trial and Appeal Board (PTAB) to find invalid all or at least some of the challenged claims,...more

Fish & Richardson

EPRx 201: The Risks and Rewards of Ex Parte Reexamination

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Ex parte reexamination (EPRx) comes with risks and rewards for both patent challengers and patent owners. Patent challengers enjoy a lower threshold for institution and avoid the estoppel risk of other post-grant proceedings...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

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

The Federal Circuit Opines on a Motivation to Combine

The Federal Circuit’s holding in United Servs. Auto. Ass’n v. PNC Bank N.A., No. 2023-2171, 2025 WL 339662 (Fed. Cir. Jan. 30, 2025) reversed a Patent Trial and Appeal Board (“PTAB”) decision finding no motivation to combine....more

Alston & Bird

Patent Case Summaries | Week Ending March 21, 2025

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AMP Plus, Inc. v. DMF, Inc., No. 2023-1997 (Fed. Cir. (PTAB) Mar. 19, 2025). Opinion by Reyna, joined by Lourie and Bryson. DMF owns a patent directed to a compact recessed lighting system that can be installed in a standard...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Actavis Labs. FL, Inc. v. United States

Actavis Labs. FL, Inc. v. United States, Appeal No. 2023-1320 (Fed. Cir. Mar. 21, 2025) Our Case of the Week, in the words of its author, Circuit Judge Stark, “is not actually a patent case. It is, instead, a tax case.” In...more

McDermott Will & Emery

Construing Unambiguous Claim Language and Qualifying Challenged Expert as POSITA

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Addressing the issues of claim construction and the requisite expert qualifications to testify on obviousness and anticipation, the US Court of Appeals for the Federal Circuit vacated a Patent Trial & Appeal Board decision...more

Knobbe Martens

Where Method Claim Steps Are Connected by “And,” a Covered Method Must Perform Each Step

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SIERRA WIRELESS, ULC V. SISVEL S.P.A. Before Moore, Schall, and Taranto. Appeal from the Patent Trial and Appeal Board. The Board erred by finding method-claim steps connected by “and” to be conditional and by never...more

Vorys, Sater, Seymour and Pease LLP

The Precedent: Federal Circuit Vacates Claim Construction But Upholds PTAB’s Determination of Obviousness and Motivation to...

In this edition of The Precedent, we outline the Federal Circuit's decision in HD Silicon Solutions LLC v. Microchip Technology Inc. In HD Silicon Solutions LLC, the Federal Circuit addressed an appeal from the USPTO Patent...more

McDonnell Boehnen Hulbert & Berghoff LLP

DNA Genotek Inc. v. Spectrum Solutions LLC (Fed. Cir. 2025)

Sometimes important contributions to innovation can come from the mundane rather than the extraordinary. One (perhaps apocryphal) example comes from the story of the early development of television by Philo Farnsworth (the...more

McDermott Will & Emery

Validity Analysis for Product-by-Process Claim Focuses on Product

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The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board patentability finding, explaining that an anticipation analysis for a product-by-process claim focuses on the product and not the process....more

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