News & Analysis as of

Patent Infringement

Alston & Bird

Patent Case Summaries | Week Ending August 1, 2025

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Jiaxing Super Lighting Electric Appliance, Co., Ltd., et al. v. CH Lighting Technology Co., Ltd., et al., No. 2023-1715 (Fed. Cir. (W.D. Tex.) July 28, 2025). Opinion by Dyk, joined by Chen and Hughes....more

Akin Gump Strauss Hauer & Feld LLP

Patent Damages Based on Avoided Costs Do Not Invoke the Entire Market Value Rule

In ruling on a recent motion to strike, a judge in the Eastern District of Texas permitted a damages expert to rely on a damages theory based on defendant’s “avoided costs,” holding that this theory did not run afoul of the...more

Array

This Week in eDiscovery: Privilege Decision on Litigation Funding | Meet Array at ILTACON

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Every week, the Array team reviews the latest news and analysis about the evolving field of eDiscovery to bring you the topics and trends you need to know. This week’s post covers the period of July 27-August 2. Here’s what’s...more

Robins Kaplan LLP

Liquidia Techs., Inc. v. FDA - Updated 5.2.25

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Nature of the Case and Issue(s) Presented: FDA refused to approve Liquidia’s drug product, Yutrepia because another company, UTC, maintained marketing exclusivity. Liquidia sued FDA, and UTC intervened. The court granted...more

A&O Shearman

UPC Ruling on amendment of counterclaims in patent revocation

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Sunstar Engineering Europe GmbH v. Ceracon GmbH, Mannheim Local Division, June 6, 2025 (UPC_CFI_745/2024) The UPC has recently clarified its strict approach to amending counterclaims for revocation in patent litigation....more

Jones Day

Acting Director Clarifies Multi-Petition Policy for Competing Constructions

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On June 25, 2025, Acting Director Coke Stewart released an informative decision vacating institution of inter partes review (“IPR”) based on two petitions that were primarily filed to present two different constructions....more

Knobbe Martens

Federal Circuit Review | July 2025

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In Janssen Pharmaceuticals, Inc. v. Teva Pharmaceuticals USA, Inc., Appeal No. 25-1228, The Federal Circuit found that claims reciting a dosing regimen with unequal loading doses were not obvious and that a presumption of...more

Akin Gump Strauss Hauer & Feld LLP

N.D. Cal. Judge Reverses Prior Order Barring Device Art “Materially Identical” to Printed Publications After Federal Circuit...

A Northern District of California judge recently granted a motion to reconsider his summary judgment ruling that defendant was barred from raising certain “device art” due to IPR estoppel under 35 U.S.C. § 315(e)(2). In the...more

Robins Kaplan LLP

Ingenus Pharms., LLC v. Nexus Pharms., Inc.

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Nature of the Case and Issue(s) Presented: Cyclophosphamide is an antineoplastic agent used to treat various cancers, including lymphomas, myeloma, leukemia, and breast carcinoma. The ’952 patent, issued to Plaintiffs in May...more

Irwin IP LLP

Arguments in Prosecution History Limit Design Patents Too 

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The USPTO must reject a patent application if the applicant’s claim covers what the prior art already disclosed, and patent applicants may respond to such rejections with arguments that what they claimed was different. ...more

Sheppard Mullin Richter & Hampton LLP

The Push and Pull of Prosecution Estoppel: How Cancelled Claims Can Affect the Scope of Non-Amended Claims

Prosecution history estoppel may narrow the scope of a claim that was unamended during prosecution, if another closely related claim is amended or cancelled during prosecution....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Jiaxing Super Lighting Electric Appliance, Co. Ltd. v. CH Lighting Technology Co., Ltd.

Jiaxing Super Lighting Electric Appliance, Co. Ltd. v. CH Lighting Technology Co., Ltd., Appeal No. 2023-1715 (Fed. Cir. July 28, 2025) In our Case of the Week, the Federal Circuit addressed three issues arising from a...more

A&O Shearman

Evidence Exclusion And Daubert Motion Denials Must Be Supported By Valid Legal Rule And Reasoning; Damage Calculation Must Account...

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In Jiaxing Super Lighting Elec. Appliance, Co. v. CH Lighting Tech. Co., Ltd, the Court of Appeals for the Federal Circuit reviewed the judgment in a patent infringement case involving three patents owned by Jiaxing Super...more

Hudnell Law Group

Federal Circuit Rejects Formalistic Shield to Prosecution History Estoppel

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On July 18, 2025, the U.S. Court of Appeals for the Federal Circuit reversed a $106 million jury verdict in Colibri Heart Valve LLC v. Medtronic CoreValve, LLC, No. 2023-2153, finding that Colibri’s infringement claim under...more

Robins Kaplan LLP

United Therapeutics Corp. v. Liquidia Techs., Inc.

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Nature of the Case and Issue(s) Presented: UTC’s ’782 patent claims a method for treating pulmonary hypertension (“PH”). PH manifests in different varieties, including pulmonary arterial hypertension (“PAH”) and pulmonary...more

Baker Botts L.L.P.

Summer Pool Games Heat Up: Patent Owner Dunks EV Battery Manufacturer

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About a year ago, two major tech companies launched Tulip Innovations to manage a pool of 5000+ patents focused on battery technologies, inviting manufacturers to collaborate and take a license. But it's not all fun and games...more

Goodwin

Final Judgment of Non-Infringement Entered in Alnylam v. Pfizer Vaccine Patent Dispute

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​​​​​​​On July 30, 2025, the U.S. District Court for the District of Delaware entered a Final Judgment in the dispute between Alnylam Pharmaceuticals, Inc. (“Alnylam”) and Pfizer, Inc. (“Pfizer”)—concluding that Pfizer’s...more

Patterson Belknap Webb & Tyler LLP

Out With the Old, in With the New: Judge Ramos Grants Leave to Assert New Patents After the Original Patents-in-Suit Were Found...

On July 29, 2025, Judge Edgardo Ramos (S.D.N.Y.) granted plaintiff Kannuu Pty, Ltd. (“Kannuu”) leave to amend its complaint to allege infringement of two newly-issued patents, after the U.S. Patent and Trademark Office...more

Baker Botts L.L.P.

Intellectual Property Report August 2025

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Key Takeaway: When facing a patent infringement suit, accused infringers traditionally turned to inter partes review (IPR) as a faster, more cost-effective alternative to district court litigation. However, recent guidance...more

Venable LLP

Jury Finds Botox® Patent Claims Nonobvious and Awards Damages from Daxxify® Sales

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On July 18, 2025, after a five-day trial, the jury in Allergan v. Revance Case No. 1:21-cv-01411 (D. Del.) entered a verdict finding claim 8 of Allergan’s U.S. Patent No. 7,354,740 (“the ’740 patent”), claim 6 of U.S. Patent...more

Robins Kaplan LLP

Astellas Pharma Inc. v. Zydus, Inc. II

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Nature of the Case and Issue(s) Presented: Astellas sued Lupin and Zydus based on the generics manufacturers’ ANDA filing and their efforts to make and sell generic mirabegron. In the leadup to the 2023 bench trial, the...more

Baker Botts L.L.P.

Ex Parte Reexaminations Poised to Make a Quiet Comeback: Discretionary Denial Guidance for Inter Partes Reexamination May Increase...

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Imagine this. You were just served with a Complaint for patent infringement and learn that, some years ago, your competitor was granted a patent giving them a legal monopoly to exclude others, including you, from making,...more

Robins Kaplan LLP

Azurity Pharms., Inc. v. Alkem Labs. Ltd.

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Nature of the Case and Issue(s) Presented: The ’948 patent claims non-sterile drinkable liquid formulations of vancomycin, an antibiotic used to treat Clostridium difficile infection. These formulations are particularly...more

K&L Gates LLP

USPTO Director Ends IPR Against Midas Green Technologies

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On 25 July 2025, K&L Gates secured an important win for its client, Midas Green Technologies, LLC. Acting USPTO Director Coke Morgan Stewart granted Director review and denied institution of an inter partes review (IPR)...more

Alston & Bird

Patent Case Summaries | Week Ending July 25, 2025

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IGT v. Zynga Inc., No. 2023-2262 (Fed. Cir. (PTAB) July 22, 2025). Opinion by Taranto, joined by Prost and Reyna. IGT owns a patent related to secured virtual networks in gaming environments. After the patent application was...more

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