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Patents Evidence Patent Infringement

A&O Shearman

Navigating the UPC’s evidence minefield: when confidentiality issues clash with procedural deadlines

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In July 2024, the UPC Court of Appeal (CoA) clarified its procedural rules surrounding evidence preservation and confidentiality. It confirmed that the deadline for bringing an action on the merits only starts to run after...more

Jones Day

Federal Circuit Reverses District Court’s Application Of Collateral Estoppel

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Kroy IP Holdings, LLC sued Groupon, Inc., alleging infringement of 13 claims of U.S. Patent No. 6,061,660 (“’660 patent’), which relates to incentive programs over computer networks. Those claims were invalidated via...more

Proskauer - The Patent Playbook

A Looming En Banc Decision with Potentially Damaging Consequences – EcoFactor v. Google

For anyone following the evolving admissibility standards for expert opinions relating to patent damages, the EcoFactor v. Google case is one to watch. In December 2024, the Federal Circuit granted Google’s petition for...more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Touches on Appellate Standing and Prior Art Determinations in the Context of Post-Grant Review Proceedings

In CQV Co. Ltd. v. Merck Patent GmbH, the Federal Circuit addressed (1) the interaction of indemnification agreements with Article III standing for appeals of post-grant review decisions of the Patent Trial and Appeal Board;...more

Vorys, Sater, Seymour and Pease LLP

The Precedent: The Federal Circuit Remands and Reassigns District Court Patent Infringement Case to a New Judge

In this edition of The Precedent, we outline the decision in Trudell Medical International Inc. v. D R Burton Healthcare LLC. The U.S. Court of Appeals for the Federal Circuit recently affirmed in part, reversed in part and...more

Akin Gump Strauss Hauer & Feld LLP

District Court: Incorporation by Reference for Purposes of Anticipation Requires More than a Parenthetical

In a series of rulings on a motion in limine, the District of Delaware recently distinguished between what qualifies as being incorporated by reference and what does not for the purposes of an anticipation defense. In short,...more

A&O Shearman

Poster Presentation Tied To Business Objectives Serves As Evidence Of Infringement Of Patented Methods

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On February 12, 2025, the United States District Court for the District of Delaware denied defendant Parse Biosciences’s (“Parse”) motions for summary judgment that: (i) Parse had never actually conducted any direct or...more

Vorys, Sater, Seymour and Pease LLP

The Precendent: U.S. Court of Appeals for the Federal Circuit Reaffirms Standard of Proof for Correcting Inventorship in BearBox...

In this edition of The Precedent, we outline the recent federal circuit decision in BearBox LLC v. Lancium LLC. The United States Court of Appeals for the Federal Circuit recently affirmed that parties seeking correction of...more

McDermott Will & Emery

Judicial Bias and Erroneous Admission of Expert Testimony Prompt Case Reassignment

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The US Court of Appeals for the Federal Circuit reversed a district court’s decision to admit expert testimony and remanded the case to a different judge, noting that “from the moment this case fell in his lap, the trial...more

Irwin IP LLP

Federal Circuit Opts Not to Play its REVERSE [DOE] Card 

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Steuben Foods, Inc. v. Shibuya Hoppmann Corp., No. 23-1790 (Fed. Cir. 2025) - On January 24, 2025, the Federal Circuit considered the “long mentioned but rarely applied” reverse doctrine of equivalents (“RDOE”) defense. ...more

McDermott Will & Emery

[Webinar] Litigating in the Unified Patent Court: Strategies for Success - February 11th, 11:00 am - 12:00 pm EST

Nearly two years in, the Unified Patent Court (UPC) continues to reshape the patent litigation landscape in Europe by providing swift, cross-border resolutions and an innovative approach to patent enforcement and revocation....more

Robins Kaplan LLP

Janssen Pharms., Inc. v. Teva Pharms. USA, Inc.

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Invega Sustenna® (paliperidone palmitate) - Case Name: Janssen Pharms., Inc. v. Teva Pharms. USA, Inc., Civ. Nos. 18-734, 19-16484, 2024 WL 5135666 (D.N.J. Dec. 17, 2024) (Cecchi, J.)  Drug Product and Patent(s)-in-Suit:...more

McDermott Will & Emery

Bottling the Truth: Equivalence and Reverse Equivalence

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The US Court of Appeals for the Federal Circuit ruled that the “substantially the same way” comparison in connection with a doctrine of equivalents (DOE) analysis involving a means-plus-function claim limitation should focus...more

Fitch, Even, Tabin & Flannery LLP

IP Alert: Federal Circuit Addresses Inventorship and Conversion Claim from Industry Summit

On January 13, in BearBox LLC v. Lancium LLC, the Federal Circuit addressed issues related to inventorship and state law conversion claims that stemmed from exchanges between two individuals, Mr. Storms and Mr. McNamara, at...more

Patterson Belknap Webb & Tyler LLP

There’s an Exception to Every Rule: Judge Schofield Finds a Comparison of the Plaintiff’s Patented System and the Accused System...

In a recently published opinion, Judge Lorna G. Schofield (S.D.N.Y.) found that it was appropriate to compare the accused system to a plaintiff’s commercial system embodying the asserted patent claims, rather than the patent...more

Jones Day

Thickness Arguments Cross the Line for Federal Circuit

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When issued patent drawings are not explicitly made to scale, the Federal Circuit recently confirmed that arguments relying solely or predominately on the features of those drawings, such as line thickness, are “unavailing.” ...more

Jones Day

“First Available” Date Alone Is Insufficient Evidence of Disclosure

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The Patent Trial and Appeal Board (“PTAB”) denied institution in an inter partes review (“IPR”), finding that an online store’s assertion regarding when a product was “first available” is by itself insufficient evidence of...more

A&O Shearman

Federal Circuit Affirms Non-Infringement At Summary Judgment On “Document Stream” Patents In Mirror Worlds Technologies, LLC v....

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Mirror Worlds Technologies, LLC ("Mirror Worlds") owns U.S. Patent Nos. 6,006,227; 7,865,538; and 8,255,439, which claim methods for storing, organizing, and presenting data in time-ordered streams on a computer system. In...more

Akin Gump Strauss Hauer & Feld LLP

PTAB Refuses to Ignore Reference Where Patent Owner Fails to Overcome Prima Facie Evidence of ‘Different Inventive Entity’

The Patent Trial and Appeal Board determined that a reference could be used as prior art because patent owner failed to provide sufficient evidence that the prior art’s disclosure was invented by all four named inventors, and...more

Jones Day

Petitioner Mistakenly Ignores Not-So-Optional Claim Limitation

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The PTAB recently excluded a portion of Duration Media LLC’s (Petitioner) reply declaration for containing improper new evidence in an inter partes review petition filed against Rich Media Club LLC (Patent Owner) challenging...more

Akin Gump Strauss Hauer & Feld LLP

PTAB Denies Motion to Compel Discovery of Evidence from Parallel ITC Investigation Due to Lack of Inconsistency

The PTAB denied a petitioner’s motion to compel routine discovery that sought information from a parallel ITC investigation for alleged inconsistent positions taken by patent owner in the IPR. The board found that patent...more

Jones Day

Secondary Considerations Arguments Precluded By Prior Nexus Testimony

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On June 6, 2024, the PTAB issued a Final Written Decision concluding claims 1-6 of U.S. Patent No. 8,899,655 B1 (“the ’655 patent”) unpatentable. Yita LLC v. MacNeil IP LLC, IPR2023-00172, Paper 70 (PTAB Jun. 6, 2024)...more

Akin Gump Strauss Hauer & Feld LLP

Jury Verdict Overturned Based on Insufficient Evidence of Infringement

The District of Delaware granted-in-part Shopify’s motion for judgment as a matter of law, or alternatively a new trial, citing gaps in the evidentiary record resulting in an insufficient basis for the jury verdict of...more

Sheppard Mullin Richter & Hampton LLP

The Importance of Reasonable Particularity in a Doctrine of Equivalents Argument

In VLSI Technology LLC v. Intel Corporation, No. 22-1906 (Fed. Cir. 2023), VLSI sued Intel for infringement of U.S. Patent Nos. 7,523,373 (the “’373 patent”) and U.S. Patent No. 7,725,759 (the “’759 patent”). After a jury...more

Troutman Pepper Locke

How Much Claim Construction ‎Significance? – Extrinsic Evidence and Significant Figures

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In almost every claim construction, the courts make their claim construction ruling largely based on the intrinsic evidence – the claims, specification and prosecution history. However, the Federal Circuit (CAFC) bucked this...more

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