News & Analysis as of

Doctrine of Equivalents Intellectual Property Protection Appeals

Vorys, Sater, Seymour and Pease LLP

The Precedent: Federal Circuit Sidesteps Ruling on the Reverse Doctrine of Equivalents Theory in Steuben Foods Inc. v. Shibuya...

In this edition of The Precedent, we outline the decision in Steuben Foods Inc. v. Shibuya Hoppmann Corp. This case addresses whether the reverse doctrine of equivalents (RDOE) is a viable defense to patent infringement....more

Fitch, Even, Tabin & Flannery LLP

Is the End Near for the Reverse Doctrine of Equivalents?

On January 24, in Steuben Foods, Inc v. Shibuya Hoppman Corporation, the Federal Circuit found that Steuben had made a compelling argument that the common law Reverse Doctrine of Equivalents (RDOE) did not survive the 1952...more

McDermott Will & Emery

Bottling the Truth: Equivalence and Reverse Equivalence

McDermott Will & Emery on

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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Steuben Foods, Inc. v. Shibuya Hoppman Corp.

Steuben Foods, Inc. v. Shibuya Hoppman Corp., Appeal No. 2023-1790 (Fed. Cir. Jan. 24, 2025) In its only precedential patent decision this week, the Federal Circuit addressed an “anachronistic exception, long mentioned but...more

McDermott Will & Emery

The Devil Is in the Details: Bioequivalence, In Vitro Testing Not Enough to Establish Infringement

McDermott Will & Emery on

Addressing for the first time the issue of whether bioequivalence data and in vitro testing can show that an abbreviated new drug application (ANDA) product with different immediate and delayed release portions infringed on a...more

Jones Day

Unified Patent Court: First Ruling on Equivalent Infringement

Jones Day on

The doctrine of equivalents is a staple patent law principle, addressing the tension between providing fair protection to innovative ideas and ensuring legal certainty for third parties. However, like most patent laws, the...more

McDermott Will & Emery

Equivalence Requires Element-by-Element Proof With Linking Argument

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court determination that a patent owner had not provided the “particularized testimony and linking argument” required to demonstrate equivalence under the...more

McDermott Will & Emery

Sound the Alarm: Reasonable Royalty Apportionment Analysis Overlooks “Sleep State”

McDermott Will & Emery on

After a jury found infringement of two patents and awarded almost $2.2 billion in damages, the US Court of Appeals for the Federal Circuit reversed the infringement finding for one asserted patent, vacated the damages award...more

International Lawyers Network

A David And Goliath Style UGG Boot Dispute

Just over five years after the California-based retail giant Deckers Outdoor Corp. (Deckers) filed a lawsuit against Sydney-based footwear company, Australian Leather Pty Ltd (Australian Leather) for trademark infringement,...more

Dorsey & Whitney LLP

UGG, Is it Finally Over?

Dorsey & Whitney LLP on

A long-running battle between Deckers Outdoor Corp., the makers of UGG boots, and Australian Leather PTY Ltd. may finally be over after a May 7 ruling by the United States Court of Appeals for the Federal Circuit. The battle...more

Ladas & Parry LLP

UK Supreme Court Decision In Actavis V. Eli Lilly – Doctrine Of Equivalents Recognized

Ladas & Parry LLP on

In its decision of July 12, 2017 in Actavis v. Eli Lilly, the Supreme Court of the United Kingdom for the first time formally adopted the concept of a doctrine of equivalents when considering what constituted an infringement...more

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