News & Analysis as of

Claim Construction

DLA Piper

What is a “Clear and Unmistakable” Prosecution History Disclaimer?

DLA Piper on

The Federal Circuit’s March 21, 2025 decision in Maquet Cardiovascular LLC v. Abiomed Inc. et al. (No. 2023-2045) and the recent Patent Trial and Appeal Board (PTAB) Delegated Rehearing Panel decision in SynAffix B.V. v....more

McDermott Will & Emery

X-Ray Vision: Court Sees Through Implicit Claim Construction

The US Court of Appeals for the Federal Circuit reversed the Patent Trial & Appeal Board’s final determination that challenged patent claims were not unpatentable, finding that the Board’s decision relied on an erroneous...more

A&O Shearman

The UPC’s interpretation of inventive step: does it follow the problem-solution approach?

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UPC case law on the assessment of inventive step is still evolving. Most local division (LD) decisions have indicated a slightly diverging practice from the EPO’s problem-solution approach. However, more recently, others have...more

A&O Shearman

Federal Circuit Rejects PTAB’s Implicit And Incorrect Claim Construction Of “Between 1 And 10”

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On May 23, 2025, the United States Court of Appeals for the Federal Circuit (“CAFC”) issued a precedential opinion reversing a final written decision from the U.S. Patent Trial and Appeal Board (“PTAB”) finding the challenged...more

WilmerHale

Federal Circuit Patent Watch: En Banc Federal Circuit Finds Lump Sum Settlement Licenses Insufficient to Support $X Royalty Rate...

WilmerHale on

Precedential and Key Federal Circuit Opinions - ECOFACTOR, INC. v. GOOGLE LLC [OPINION] (2023-1101, 5/21/2025) (Lourie, Dyk, Prost, Reyna, Taranto, Chen, Hughes, Stoll, Stark) - Moore, C.J. The en banc Court reversed...more

Sheppard Mullin Richter & Hampton LLP

Undetectable Amount of Magnification IS Magnification

This Federal Circuit Opinion analyzes invalidity based on anticipation and obviousness, more specifically based on implicit claim construction of the claim limitation and inherent disclosures....more

Alston & Bird

Patent Case Summaries | Week Ending May 23, 2025

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EcoFactor, Inc. v. Google LLC, No. 2023-1101 (Fed. Cir. (W.D. Tex.) May 23, 2025). En banc opinion by Moore, joined by Lourie, Dyk, Prost, Taranto, Chen, Hughes, and Stoll. Opinion concurring in part and dissenting in part by...more

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

Broadening on Reissue is Based on the Scope of the Language of the Claims, Not the Original Intention of the Applicant

Takeaways: - Claim construction for determining whether reissue claims are improperly broadened is based on fundamental claim construction cannons and not applicant intentions. - Patent Owners should check patented claims...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: EcoFactor, Inc. v. Google LLC

EcoFactor, Inc. v. Google LLC, Appeal No. 2023-1101 (Fed. Cir. May 21, 2025) In its first en banc decision of the year, the Federal Circuit reversed a district court’s admission of expert testimony concerning damages,...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Statements Made During Prosecution of Parent Application Disavow Claim Scope in Subsequent Patents

The Federal Circuit affirmed a District of Delaware finding of non-infringement in an ANDA litigation due to the patentee’s clear and unmistakable disavowal of claim scope during prosecution. Specifically, the court held that...more

Alston & Bird

Patent Case Summaries | Week Ending May 16, 2025

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The Regents of the University of California, et al. v. The Broad Institute, Inc., et al., Nos. 2022-1594, -1653 (Fed. Cir. (PTAB) May 12, 2025). Opinion by Reyna, joined by Hughes and Cunningham....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

Sheppard Mullin Richter & Hampton LLP

The Importance of Preserving Issues for Appeal

This Federal Circuit opinion analyzes claim construction arguments and requests for remittitur in the context of preserving issues for appeal. Background - Belanger is a manufacturer of car wash systems. Belanger owns...more

Venable LLP

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

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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

Ervin Cohen & Jessup LLP

Patents Must Describe the “How” - A Reminder That Functional Claims Need Structural Support

On April 30, 2025, the Federal Circuit issued a decision in Fintiv, Inc. v. PayPal Holdings, Inc. (No. 23-2312), issued on April 30, 2025, upholding the invalidation of Finitiv Inc.’s (“Finitiv”) mobile wallet patents related...more

Patterson Belknap Webb & Tyler LLP

Judge Engelmayer Gets a Handle on “BlenderBottle” Patent Claims and Rejects Assertion of Indefiniteness

Judge Paul A. Engelmayer (S.D.N.Y.) recently construed claim terms at issue in a patent litigation between Plaintiffs Trove Brands, LLC, d/b/a The BlenderBottle Company, and Runway Blue, LLC (collectively, “Trove”) and...more

McDonnell Boehnen Hulbert & Berghoff LLP

The Narrow Pathway to Patent Eligibility in the Federal Circuit

The last 11 years have taught us much about the Federal Circuit; namely, that a majority of the judges simply do not seem to appreciate software. Given the statements that several have made in opinions, one might be able to...more

McDermott Will & Emery

Clickbait: Actual Scope (Not Intended Scope) Determines Broadening Reissue Analysis

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The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s rejection of a proposed reissue claim for being broader than the original claim, denying the inventors’ argument that the analysis...more

McDonnell Boehnen Hulbert & Berghoff LLP

Regents of the University of California v. Broad Institute, Inc. (Fed. Cir. 2025) - Update

Only a few days after the one-year anniversary of hearing oral argument, the Federal Circuit handed down its decision in Regents of the University of California v. Broad Institute, Inc. on Monday. The opinion reviewed the...more

Irwin IP LLP

Fair Shot at Privity: Director Reverses PTAB on Discovery Ruling 

Irwin IP LLP on

Semiconductor Components Indus., LLC v. Greenthread LLC, IPR2023-01242, -01243, -01244 (USPTO Apr. 30, 2025) - The USPTO Director’s recent decision in Semiconductor Components v. Greenthread squarely addresses a recurring...more

Venable LLP

Spotlight On: Enbrel® (etanercept) / Erelzi® (etanercept-szzs) / Eticovo® (etanercept-ykro) - May 2025

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Etanercept 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: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

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Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Akin Gump Strauss Hauer & Feld LLP

Claim Construction Issues and Large Number of Claims Not Enough to Institute a Second Petition for Inter Partes Review

The Patent Trial and Appeal Board recently declined to institute a petition for IPR that was filed on the same day that the petitioner filed another petition challenging the same claims of the same patent. The board was not...more

Fish & Richardson

ITC Round-Up: Q1 2025

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The first quarter of 2025 saw the International Trade Commission issue the following public orders addressing a wide variety of issues ranging from evaluation of significance for domestic industry to staying remedial orders...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

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