News & Analysis as of

Inter Partes Review (IPR) Proceeding Burden of Proof Patent Invalidity

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: PTAB Decision of Invalidity Cannot Estop District Court Litigation on Different Claims from the Same Patent, Even...

The Federal Circuit recently refused to apply collateral estoppel to claims of a patent asserted in district court litigation based on a Patent Trial and Appeal Board (PTAB) decision finding similar claims from the same...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

Hudnell Law Group

Differing Burdens of Proof Limits Estoppel Effect of PTAB Final Written Decision

Hudnell Law Group on

On February 10, 2025, the United States Court of Appeals for the Federal Circuit issued a decision in Kroy IP Holdings, LLC v. Groupon, Inc., reversing and remanding a district court ruling that had dismissed Kroy’s patent...more

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

WilmerHale on

Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Fish & Richardson

The Top Three Things Foreign Companies Should Keep in Mind When Considering IPR

Fish & Richardson on

Being sued for patent infringement in the U.S. can be confusing, especially for foreign companies with limited litigation experience. Even more confusing are the multiple options and venues available for responding to patent...more

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Addresses Burden of Proof for IPR Estoppel

On April 3, in Ironburg Inventions Ltd. v. Valve Corp., the Federal Circuit articulated a standard for applying inter partes review (IPR) estoppel on grounds a petitioner “reasonably could have raised” under 35 U.S.C. §...more

Haug Partners LLP

Ethicon’s Surgical Stapler Patent Held Invalid by the Federal Circuit

Haug Partners LLP on

In Ethicon LLC v. Intuitive Surgical, Inc., the Court of Appeals for the Federal Circuit (“CAFC”) upheld a finding from the Patent Trial and Appeal Board (“Board”) the claims of Ethicon’s patent directed to a surgical stapler...more

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

PTAB Strategies and Insights - July 2021: Can the PTAB Adopt a New Construction of an Agreed-Upon Term?

In Qualcomm Inc. v. Intel Corp., the Federal Circuit ruled that the Patent Trial and Appeal Board violated patent owner Qualcomm’s rights under the Administrative Procedures Act (APA) by not giving it notice and a chance to...more

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

PTAB Strategies and Insights - July 2021

[co-author: Jay Bober, Summer Associate] The PTAB Strategies and Insights newsletter provides timely updates and insights into how best to handle proceedings at the USPTO. It is designed to increase return on investment for...more

Goodwin

Issue Twenty-Nine: PTAB Trial Tracker

Goodwin on

The availability of post-grant proceedings at the Patent Trial and Appeal Board (PTAB) has changed the face of patent litigation. This monthly digest is designed to keep you up-to-date by highlighting interesting PTAB,...more

Morrison & Foerster LLP - Federal Circuitry

Last Week in the Federal Circuit (July 27-31): Gambling on an APA Challenge

It was a moderately eventful week at the Federal Circuit as the judges geared up for their August argument session and perhaps returned from their summer vacations. The Court issued 13 opinions and 2 orders on petitions for a...more

McDermott Will & Emery

Unrebutted Declaration Supports Public Availability of Prior Art

McDermott Will & Emery on

Addressing the evidentiary showing necessary to prove whether a foreign publication is publicly available, the US Court of Appeals for the Federal Circuit found that the Patent Trial and Appeal Board (PTAB) did not abuse its...more

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

Federal Circuit Appeals from the PTAB: Summaries of Key 2017 Decisions

In 2016, the US Court of Appeals for the Federal Circuit docketed more appeals from the US Patent and Trademark Office (PTO) than any other venue—a first in its over 30-year history. The post grant proceedings created by the...more

Knobbe Martens

Federal Circuit Review - January 2018

Knobbe Martens on

Where Parties Raise an Actual Dispute Regarding Claim Scope, the Court Must Resolve It In Nobelbiz, Inc. v. Global Connect, L.L.C., Appeal Nos. 2016-1104, 2016-1105, the Federal Circuit held that where parties raise an actual...more

Jones Day

PTAB Disqualifies Reference for Failure to Show Public Accessibility

Jones Day on

The PTAB’s recent final written decision denying a finding of unpatentability in ABS Global, Inc. v. Inguran, LLC, Case IPR2016-00927, Paper 33 (PTAB Oct. 2, 2017) highlights the importance of obtaining affidavit evidence to...more

Knobbe Martens

Federal Circuit Review | May 2017

Knobbe Martens on

Federal Circuit Affirms Different Invalidity Results at PTAB and District Court - In Novartis AG v. Noven Pharmaceuticals Inc., Appeal Nos. 2016-1678, 2016-1679, the Federal Circuit held that prior judicial opinions...more

Knobbe Martens

Federal Circuit Review | January 2016

Knobbe Martens on

The Federal Circuit Will Review Appeals from Inter Partes Review Proceedings Under the “Substantial Evidence” Standard - In Merck & Cie v. Gnosis S.p.A., Appeal No. 2014-1779, the Federal Circuit affirmed a PTAB IPR...more

McDermott Will & Emery

It Can Happen: PTAB Alters Final Written Decision on Rehearing - Square, Inc. v. REM Holdings 3, LLC

In a rare decision granting a petitioner’s rehearing request, the Patent Trial and Appeal Board (PTAB or Board) reversed its earlier position in a final written decision where it found that the petitioner had not shown that...more

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