News & Analysis as of

Inter Partes Review (IPR) Proceeding Patent Infringement Claim Construction

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

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

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

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

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

Jones Day

Federal Circuit Rules That Order Of Steps Sometimes Does Matter

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Back in May of 2020, European patent-licensing company Sisvel filed a flurry of lawsuits against a dozen tech companies who had allegedly infringed Sisvel’s portfolio of wireless communication and networking patents. A...more

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

Reexamination of Expired Patents

Takeaways - - Expired patents may be eligible for reexamination. - Owner’s options during reexamination of an expired patent are severely limited. Similar to reexamination practice, which has long allowed reexamination...more

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

PTAB Year in Review – Caveat Experimenter: Using Experimental Data in PTAB Proceedings Comes With Risks

Parties involved in Patent Trial and Appeal Board (PTAB) proceedings sometimes contemplate submitting experimental data to support their positions. Although such data can be useful, there also are risks. Several recent cases...more

Alston & Bird

Patent Case Summaries | Week Ending February 7, 2025

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HD Silicon Solutions LLC v. Microchip Technology, Inc., No. 2023-1397 (Fed. Cir. (PTAB) Feb. 6, 2025). Opinion by Lourie, joined by Stoll and Cunningham....more

Knobbe Martens

Federal Circuit Review | January 2025

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In Honeywell International Inc. v. 3G Licensing, S.A., Appeal No. 23-1354, the Federal Circuit held that under the obviousness standard of 35 U.S.C. § 103, the motivation to modify prior art does not need to be the same as...more

A&O Shearman

Federal Circuit Affirms PTAB Decision Regarding DNA Sampling Patent

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On January 6, 2025, the United States Court of Appeals for the Federal Circuit (“CAFC”) affirmed the decision of the Patent Trial and Appeal Board (“PTAB”) rejecting a challenge to U.S. Patent No. 7,332,277 (“the ‘277...more

Pillsbury Winthrop Shaw Pittman LLP

Navigating the PREVAIL Act: Key Impacts on Litigants as It Advances in the Senate

The PREVAIL Act is now subject to debate before the full Senate. The Act will require petitioners to certify standing, two new categories of which were recently added via a manager’s amendment....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2024 #3

CloudofChange, LLC v. NCR Corp., Appeal No. 2023-1111 (Fed. Cir. Dec. 18, 2024) In our Case of the Week, the Federal Circuit addressed the question of divided infringement in the context of system claims. In its...more

WilmerHale

Federal Circuit Patent Watch: Deterrence Sanctions Affirmed for Bad Faith Filings of Meritless Lawsuits

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Precedential and Key Federal Circuit Opinions - 1. CYTIVA BIOPROCESS R&D AB v. JSR CORP. [OPINION] (2023-2074, 12/4/2024) (Prost, Taranto, Hughes) - Prost, J. The Court affirmed the PTAB’s IPR determination that...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2024 #2

DDR Holdings, LLC v. Priceline.com LLC, Appeal Nos. 2023-1176, -1177 (Fed. Cir. Dec. 9, 2024) In our Case of the Week, the Federal Circuit affirmed a stipulated non-infringement judgment from Delaware’s district court,...more

Erise IP

Eye on IPRs: November 2024: USPTO Director to Step Down, Did Fed. Circuit DISH Asks Full Fed. Cir. Panel to Reconsider Vacating...

Erise IP on

Every month, Erise’s patent attorneys review the latest inter partes review cases and news to bring you the stories that you should know about: USPTO Director Vidal to Step Down - On November 12, Under Secretary of...more

Jones Day

Director Vacates Decision Based on Improper Claim Construction

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The PTAB denied institution of inter partes review reasoning that Petitioner did not demonstrate a reasonable likelihood that Petitioner would prevail in establishing the unpatentability of any of the challenged claims. The...more

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

WilmerHale on

Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Jones Day

PTAB Claim Construction May Be Binding In Later Litigation

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In 2016, the Federal Circuit expressed doubt that claim constructions from the PTAB could give rise to estoppel in later litigation because “the [PTAB] applies the broadest reasonable construction of the claims while the...more

Jones Day

No Requirement to Raise All Arguments in Rehearing Request

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The Federal Circuit in Voice Tech Corp. v. Unified Patents, LLC, No. 2022-2163 (Fed. Cir. Aug. 1, 2024) (Lourie, Chen, and Cunningham), affirmed the PTAB’s determination that claims of Voice Tech Corp.’s (“Voice Tech”) U.S....more

Fish & Richardson

Texas Patent Litigation Monthly Wrap-Up: July 2024

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Our Texas Patent Litigation Monthly Wrap-Up for July 2024 covers three decisions of interest from the Eastern District of Texas granting motions related to subject matter eligibility, stays pending inter partes review (IPR),...more

McDermott Will & Emery

New Arguments Yield Same Unpatentability Outcome

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On remand from the US Court of Appeals for the Federal Circuit in connection with inter partes review (IPR) proceedings, the Patent Trial & Appeal Board considered the petitioner’s reply arguments and evidence regarding the...more

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