News & Analysis as of

Evidence Patent Litigation

Akin Gump Strauss Hauer & Feld LLP

Licensing Evidence of Nonobviousness Does Not Require Claim-Specific Nexus

The Federal Circuit recently vacated a decision by the Patent Trial and Appeal Board after concluding that the board’s analysis of licensing evidence offered as a secondary consideration of nonobviousness constituted legal...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

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

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

What Should the USPTO Consider Changing for Implementing Post-Final Written Decision Estoppel in Ex Parte Reexamination Based on...

The estoppel provision of 35 U.S.C. § 315(e)(1) had largely prevented requesters from challenging claims of a patent via ex parte reexamination after an inter partes review (IPR) that resulted in a final written decision...more

Jones Day

Inventor Testimony of Reduction Date Leads to Denial

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The Patent Trial and Appeal Board (PTAB) denied institution of an inter partes review (IPR) brought by Par-Kan Company, LLC against Unverferth Manufacturing Company regarding U.S. Patent No. 8,967,940 (“the ‘940 patent”). ...more

Cooley LLP

Intellectual Property Disputes With Forensic Analysis Need Lawyers’ Involvement: Cooley’s Michael Berkovits

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Cooley’s Michael Berkovits says lawyers working on an intellectual property dispute should consult closely with forensic analysts and treat their findings as an investigative tool. Computer forensic analysis has become a...more

Proskauer - The Patent Playbook

Federal Circuit Vacates $300 Million Verdict Against Apple, Orders Third Trial in LTE Patent Dispute

In a pivotal ruling for patent damages and standard-essential patent (SEP) litigation, the Federal Circuit vacated a $300 million award against Apple in a long-standing dispute with Optis Cellular Technology, LLC. See Optis...more

Fenwick & West LLP

Key Federal Circuit Patent Rulings Impacting Your Business…

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In EcoFactor, Inc. v. Google LLC, the en banc United States Court of Appeals for the Federal Circuit reversed a district court’s denial of a new trial on damages because EcoFactor’s expert’s opinion was unreliable under Fed....more

Jones Day

Orders to Preserve Evidence (“Saisies”) at the Unified Patent Court: Two-Year Roundup and Early Insights

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Evidence is a key battleground in virtually all patent litigation cases. As a Court designed to combine the best and most efficient features of the main EU national patent litigation systems, the Unified Patent Court (“UPC”)...more

McDermott Will & Schulte

Radio Silence Alone Doesn’t Prove Equitable Estoppel Defense

The US Court of Appeals for the Federal Circuit reversed a district court’s summary judgment grant based on an equitable estoppel defense, finding that the accused infringer failed to show that the patent owner’s silence or...more

Irwin IP LLP

Unreliable Expert Testimony Shall Not Pass 

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On May 21, 2025, the Federal Circuit en banc banished the notion that the reliability of an expert’s methodology under Federal Rule of Evidence 702 (“Rule 702”) is a question of weight, not admissibility. The en banc Court...more

Venable LLP

Federal Circuit Issues Rare En Banc Decision on Patent Damages

Venable LLP on

In the first en banc decision for a utility patent case since 2018, the Federal Circuit reversed a district court's denial of a new trial on damages in EcoFactor, Inc. v. Google LLC and held that EcoFactor's damages expert's...more

McDermott Will & Schulte

En Banc Federal Circuit Cools Damages Award Because of Improper Expert Testimony

In an en banc decision in EcoFactor, Inc. v. Google LLC, the US Court of Appeals for the Federal Circuit concluded that the district court abused its discretion by admitting testimony from a damages expert that a lump-sum...more

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Emphasizes Gatekeeper Role of Court in Damages Expert Evidence

On May 21, in EcoFactor, Inc. v. Google LLC, the Federal Circuit issued an en banc ruling in which the court remanded the case for a new trial on damages. In so doing, the Federal Circuit emphasized the role of the court in...more

Proskauer - The Patent Playbook

EcoFactor v. Google: The Federal Circuit Clarifies Damages Expert Admissibility

Admissibility standards for patent damages experts has come under scrutiny. Previously, we highlighted the EcoFactor v. Google case regarding Google’s petition for rehearing en banc to address the admissibility of EcoFactor’s...more

BakerHostetler

Gatekeeping Reasserted: The Federal Circuit’s En Banc Ruling in EcoFactor v. Google

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The Federal Circuit issued its long-awaited en banc opinion in EcoFactor v. Google, which provides further clarity on the admissibility standards for damages experts under Rule 702. This decision reverses the original panel’s...more

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

Sunstein LLP

Collateral (Patent) Damage Undone by Federal Circuit?

Sunstein LLP on

In Kroy IP Holdings v. Groupon, The Federal Circuit issued a decision that should come as a comfort to patent owners, addressing the interplay between decisions of the Patent Trial and Appeal Board (“PTAB”) in inter partes...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

Knobbe Martens

Inaction Can Lead To Argument Forfeiture on Appeal

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ALIVECOR, INC. v. APPLE INC. Before Hughes, Linn, and Stark. Appeal from Patent Trial and Appeal Board - A party in a PTAB proceeding forfeits the ability to challenge an opposing party’s discovery obligation violation...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

Jones Day

Petitioner’s Proof of Printed Publication Falls Short

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On February 6, 2025, the PTAB denied IPR institution because the Petitioner failed to establish that its key prior art reference qualified as a printed publication under Section 102(b). The PTAB’s decision hinged on whether...more

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