News & Analysis as of

Patent Infringement Patent Validity

McDonnell Boehnen Hulbert & Berghoff LLP

Treprostinil Saga Continues

United Therapeutics Corp. (UTC) and Liquidia Technologies Inc. have been battling for close to a decade over their respective inhaled formulations of treprostinil (UTC's Tyvaso®, Liquidia's Yutrepia™) for treatment of...more

Sheppard Mullin Richter & Hampton LLP

Biopharmaceutical Patent Litigation: Regeneron’s Defense Against Biosimilar Launches

This case involves an appeal from Regeneron Pharmaceuticals, Inc.’s (Regeneron) efforts to prevent defendants from marketing biosimilar versions of EYLEA®, a drug used to treat eye diseases, by asserting patent infringement....more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Addresses District Court Oversight of Expert Testimony on Infringement

In Steuben Foods Inc. v. Shibuya Hoppmann Corporation, the Federal Circuit addressed the boundaries a district court may impose on experts by deeming their testimony wrong as a matter of law. Background - Steuben Foods...more

Venable LLP

Patent Litigation Defense 101: What to Know When You’ve Been Sued for Infringement

Venable LLP on

If your company has just been named in a patent infringement lawsuit, you may be facing an unfamiliar and high-stakes process. Patent litigation is unlike most commercial disputes—it involves complex legal standards, highly...more

Jones Day

Federal Circuit: Petitioner Estoppel Does Not Apply to Product Prior At Grounds

Jones Day on

In IOENGINE, LLC v. Ingenico Inc. (Fed. Cir. 2025), the Federal Circuit narrowed the scope of IPR estoppel under 35 U.S.C. § 315(e)(2), which precludes an IPR petitioner from asserting in court that a patent claim “is invalid...more

Alston & Bird

Patent Case Summaries | Week Ending May 9, 2025

Alston & Bird on

Ingenico Inc., et al. v. IOENGINE, LLC, No. 2023-1367 (Fed. Cir. (D. Del.) May 7, 2025). Opinion by Hughes, joined by Dyk and Prost. Ingenico filed a declaratory judgment action against IOENGINE relating to two patents owned...more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

Venable LLP on

Pegfilgrastim 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

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

Venable LLP on

Trastuzumab 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

Venable LLP

Spotlight On: Humira® (adalimumab) / Amjevita™ (adalimumab-atto) / Cyltezo® (adalimumab-adbm) / Hyrimoz™ (adalimumab-adaz) /...

Venable LLP on

Adalimumab 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

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - May 2025

Venable LLP on

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

Knobbe Martens

Federal Circuit Review | April 2025

Knobbe Martens on

In Ams-Osram USA Inc. v. Renesas Electronics America, Inc., Appeal No. 22-2185, the Federal Circuit held that under Texas law, a trade secret becomes publicly accessible on the earliest date it could be reverse engineered...more

Baker Botts L.L.P.

Use of Amazon Warehouses for Distribution Alone Won't Establish Patent Venue, Court Rules

Baker Botts L.L.P. on

Key Takeaway: Just as over a million businesses use Amazon web servers, many independent sellers also use Amazon warehouses to store their inventory. More than 60% of sales in the Amazon store come from independent sellers,...more

Robins Kaplan LLP

Taiho Pharma Co. v. MSN Labs Private Ltd.

Robins Kaplan LLP on

Lonsurf® (tipiracil) - Case Name: Taiho Pharma Co. v. MSN Labs Private Ltd., No. 19-2342-JLH (D. Del. Jan. 23, 2025) (Hall, J.)  Drug Product and Patent(s)-in-Suit: Lonsurf® (tipiracil); U.S. Patent No. 10,457,666 (“the ’666...more

Venable LLP

Spotlight On: Prolia® / Xgeva® (denosumab) / Jubbonti® / Wyost® (denosumab-bbdz) / Ospomyv™ / Xbryk™ (denosumab-dssb) / Stoboclo®...

Venable LLP on

Denosumab Challenged Claim Types in Litigation: Claims are counted in each litigation, so claims from the same patent challenged in multiple litigations are counted more than once. Within each litigation a claim is counted...more

Robins Kaplan LLP

Janssen Pharms., Inc. v. Mylan Labs. Ltd.

Robins Kaplan LLP on

Invega Trinza® (paliperidone palmitate) - Case Name: Janssen Pharms., Inc. v. Mylan Labs. Ltd., No. 2023-2042, 2025 WL 946390 (Fed. Cir. Mar. 28, 2025) (Circuit Judges Dyk, Prost, and District Judge Goldberg presiding;...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

Venable LLP on

Trastuzumab 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

Alston & Bird

Patent Case Summaries | Week Ending April 11, 2025

Alston & Bird on

Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd., No. 2023-1977 (Fed. Cir. (D. Del.) Apr. 8, 2025). Opinion by Murphy (sitting by designation), joined by Moore and Chen. Azurity owns a patent directed to non-sterile...more

Venable LLP

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

Venable LLP on

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

A&O Shearman

Federal Circuit Clarifies Requirements To Establish Convoyed Sales In Patent Damages

A&O Shearman on

On March 24, 2025, the U.S. Court of Appeals for the Federal Circuit (“Federal Circuit”) issued an opinion affirming a district court’s judgement of infringement while vacating and remanding the district court’s damages...more

BakerHostetler

[Podcast] The Changing Landscape: Admissibility of Experts in Patent Cases

BakerHostetler on

Experts play a crucial role in patent cases. Experts opine on claim construction, infringement, invalidity and the proper amount of damages. And the exclusion of an expert witness can significantly impact the outcome of a...more

McDermott Will & Emery

Impermissible Convoyed Sales Wash Away Damages Award

The US Court of Appeals for the Federal Circuit affirmed a district court’s finding of infringement but vacated its damages award because the award improperly included auxiliary products lacking any functional relationship to...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

Baker Botts L.L.P.

The Impact of Prosecution Length on Infringement Outcomes in Patent Litigation

Baker Botts L.L.P. on

This article continues our analysis of over 89,000 patents to determine how the number of office actions to allowance during prosecution impacts litigation outcomes. Last month we discussed how prosecution length impacts...more

A&O Shearman

Federal Circuit Expands Economic Prong Of Section 337 Domestic Industry Requirement

A&O Shearman on

Lashify, Inc. is an American company, with headquarters and employees in the United States, that distributes, markets, and sells eyelash extensions (and cases and applicators for the eyelash extensions) in the United States....more

McDermott Will & Emery

CJEU Recognizes Cross-Border Jurisdiction of National Courts, Long-Arm Jurisdiction of UPC

The Court of Justice of the European Union (CJEU) issued a decision significantly expanding the capabilities of both the Unified Patent Court (UPC) and the national courts in EU Member States to issue cross-border injunctions...more

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