News & Analysis as of

Inter Partes Review (IPR) Proceeding Burden of Proof

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

Knobbe Martens

Collateral Estoppel Does Not Apply When the Prior Proceeding Applies a Lower Burden of Proof

Knobbe Martens on

Because there are different burdens of proof in IPRs and district court, collateral estoppel does not preclude a patent owner from asserting claims that are immaterially different from claims canceled in an IPR....more

Jones Day

“First Available” Date Alone Is Insufficient Evidence of Disclosure

Jones Day on

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

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

Sheppard Mullin Richter & Hampton LLP

The Intertwining Nature of Motivation to Combine and Reasonable Expectation of Success

In Elekta Limited v. Zap Surgical Systems, Inc., No. 21-1985 (Fed. Cir. Sept. 21, 2023), the case addresses the interplay between findings related to motivation to combine and reasonable expectation of success in determining...more

Haug Partners LLP

The Many Flavors of Inter Partes Review Estoppel: A Review and Update

Haug Partners LLP on

I. Introduction - The Leahy-Smith America Invents Act (“AIA”) was years in the making.  From the first patent reform bill introduced by Representative Lamar Smith in June 20052 until the final House and Senate debates in...more

Morgan Lewis

Federal Circuit Clarifies IPR Estoppel Burden

Morgan Lewis on

A recent Federal Circuit opinion clarified that patent owners carry the burden of proving that inter partes review (IPR) estoppel applies to invalidity grounds not included in their IPR petitions. The Federal Circuit also...more

Snell & Wilmer

Federal Circuit Holds Patent Owners Bear IPR Estoppel Burden of Proof

Snell & Wilmer on

The Federal Circuit recently held, for the first time, that patent owners bear the burden of proof for an Inter Partes Review (“IPR”) Estoppel affirmative defense that an alleged infringer failed to include prior art in a...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

Rothwell, Figg, Ernst & Manbeck, P.C.

Two New PTAB Precedential Decisions

The United States Patent and Trademark Office (USPTO) maintains a list of all PTAB precedential and informative decisions organized by subject matter. These precedential decisions establish “binding authority concerning major...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.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions: Qualcomm Inc. v. Intel Corp., 6 F.4th 1256 (Fed....

Intel Corp. petitioned for six inter partes reviews (IPRs) challenging the validity of U.S. Patent No. 9,608,675, a patent directed to power management in wireless devices. In each proceeding, Intel and patent-owner Qualcomm...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

Foley & Lardner LLP

Qualcomm Prevails at Federal Circuit Based on Lack of Notice and Adequate Opportunity to Respond

Foley & Lardner LLP on

In Qualcomm Inc. v. Intel Corp., the Federal Circuit held that Qualcomm was not afforded notice of, or an adequate opportunity to respond to, the Patent Trial and Appeal Board’s (PTAB’s) novel construction of an undisputed...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

McDermott Will & Emery

Navigating the Interplay Between the ITC, PTAB and District Courts

Recent changes in intellectual property law in the US International Trade Commission (ITC), the Patent Trial and Appeal Board (PTAB) and federal US District Courts have had major impacts on litigation strategy and business...more

Fox Rothschild LLP

Chief Judge Stark Denies Defendants’ Motions To Dismiss Plaintiff’s Complaints Asserting Patent Infringement Due To The Use Of...

Fox Rothschild LLP on

By Memorandum Opinion entered by The Honorable Leonard P. Stark in Stragent, LLC v. BMW of North America, LLC et al., Civil Action No. 20-510-LPS (D.Del. March 25, 2021) (consolidated), the Court denied Defendants’ motions to...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2020 Decisions: Fanduel, Inc. v. Interactive Games LLC, 966 F.3d...

FanDuel petitioned for inter partes review (IPR) of certain claims of Interactive Games’ patent. The Patent Trial and Appeal Board instituted review and found all but dependent claim 6 to be unpatentable as obvious. ...more

Sunstein LLP

FanDuel Learns the Hard Way: An IPR Challenge to Any Patent Claim May be Lost if Not Comprehensive and Rigorous Enough

Sunstein LLP on

As we demonstrated in our own successful appeal, Arendi S.A.R.L. v. Apple Inc. (Fed. Cir. 2016), a petition for inter partes review (“IPR”) may fail when an expert declaration lacks detailed explanation. An expert’s...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

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