News & Analysis as of

Appeals Inter Partes Review (IPR) Proceeding Estoppel

McDermott Will & Emery

Breaking New Grounds to Limits of IPR Estoppel

McDermott Will & Emery on

In a matter of first impression, the US Court of Appeals for the Federal Circuit found that inter partes review (IPR) estoppel does not preclude a petitioner from relying on the same patents and printed publications as...more

Morgan Lewis

Public Use and Estoppel Reexamined: Strategic Lessons from Ingenico

Morgan Lewis on

This LawFlash details strategic takeaways and practical lessons from the recent US Court of Appeals for the Federal Circuit case on IPR estoppel, evidence of public use, and jury instructions on specific issues....more

WilmerHale

Federal Circuit Provides Guidance on Scope of IPR Estoppel

WilmerHale on

In its recent decision in Ingenico Inc. v. IOENGINE, LLC, the Federal Circuit affirmed the district court’s decision to allow Ingenico to introduce certain prior art at trial, finding that inter partes review (IPR) estoppel...more

Sheppard Mullin Richter & Hampton LLP

A Line in the Sand: Federal Circuit Bounds IPR Estoppel in Ingenico v. IOENGINE

In a significant development for patent litigants, the Federal Circuit in Ingenico Inc. v. IOENGINE, LLC, affirmed an important limitation on the scope of IPR estoppel under 35 U.S.C. § 315(e)(2). Specifically, the court held...more

A&O Shearman

The CAFC Holds That IPR Estoppel Does Not Shield Patentees From System Prior Art

A&O Shearman on

On May 7, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) affirmed a decision by the U.S. District Court for the District of Delaware (“district court”) that found claims of two IOENGINE, LLC (“IOENGINE”)...more

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

Ingenico: Federal Circuit Narrows the Scope of IPR Estoppel Under § 315(e)(2)

On May 7, 2025, the Federal Circuit issued a precedential decision in Ingenico Inc. v. IOENGINE, LLC that narrows the scope of inter partes review (IPR) estoppel under 35 U.S.C. § 315(e)(2), resolving a longstanding district...more

Proskauer - The Patent Playbook

Ingenico Inc. v. IOENGINE, LLC: Federal Circuit Resolves the IPR Estoppel Split

In what is certain to become a landmark decision, the Federal Circuit has resolved a long-standing question that divided patent litigators and judges alike: does IPR estoppel apply to physical systems (“system art”) described...more

Sheppard Mullin Richter & Hampton LLP

Don’t Get Lazy, Timely Complete Your Arguments

This Federal Circuit Opinion analyzes statutory estoppel under 35 U.S.C. § 315(e)(1) and examines offensive and defensive arguments related to § 103 obviousness.  Gesture Technology Partners, LLC is the owner of U.S....more

ArentFox Schiff

Federal Circuit Refuses to Extend IPR Estoppel to Unadjudicated Patent Claims

ArentFox Schiff on

In Kroy IP Holdings, LLC v. Groupon, Inc., 127 F.4th 1376 (Fed. Cir. 2025), the Federal Circuit held that patentees in district court are not collaterally estopped from asserting claims that were not immaterially different...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Upholds USPTO Authority to Estop Patentees from Obtaining Patent Claims 'Not Patentably Distinct' from Previously...

The Federal Circuit recently upheld the USPTO’s authority under the estoppel provision 37 C.F.R. § 42.73(d)(3)(i) to prohibit a patent owner from obtaining patent claims that are not patentably distinct from claims previously...more

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

2023 PTAB Year in Review: Analysis & Trends: The Changing Contours of IPR Estoppel Law

As any PTAB practitioner knows, the possibility of being estopped from asserting prior art in district court is a significant risk that must be considered when filing an IPR. Section 315(e)(2) prevents a petitioner, following...more

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

PTAB Strategies and Insights Newsletter - May 2023: Beware of Collateral Estoppel at the PTAB

When thinking about estoppel and the PTAB, the § 315(e) estoppels—relating to grounds a petitioner raised or reasonably could have raised—are likely the first to come to mind. However, other types of estoppel, such as...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

McDermott Will & Emery

Console Yourself: Patent Owner Bears IPR Estoppel Burden

McDermott Will & Emery on

Addressing for the first time the standard and burden of proof for the “reasonably could have raised” requirement for inter partes review (IPR) estoppel to apply, the US Court of Appeals for the Federal Circuit concluded that...more

McDermott Will & Emery

No Mulligans Here: PTO Rewinds Reexamination Based on Estoppel

McDermott Will & Emery on

The US Patent & Trademark Office (PTO) terminated a pending ex parte reexamination after finding that the challenger was estopped because the prior art references could have been raised in a prior inter partes review (IPR)....more

McDermott Will & Emery

IPR Estoppel Applies to Claim Not Addressed During Pre-SAS Proceeding

In the companion district court case to the Supreme Court’s 2019 Thryv v. Click-to-Call decision regarding the scope of review for inter partes review (IPR) decisions, the US Court of Appeals for the Federal Circuit addressed...more

McDermott Will & Emery

Since Vacatur Seeks Equitable Relief, Clean Hands Matter

McDermott Will & Emery on

In an opinion related to its 2021 ruling that a decision in earlier inter partes reexaminations of related patents had a preclusive effect that collaterally estopped the Patent Trial & Appeal Board (Board) from making new...more

Jones Day

Coordinate Arguments To Avoid Procedural Bars

Jones Day on

In a recent decision, 25 F.4th 1035 (Fed. Cir. 2022), the Federal Circuit dismissed for lack of jurisdiction an appeal of the PTAB’s decision that estopped a Petitioner from maintaining a third IPR that challenged the same...more

Foley & Lardner LLP

IPR Jeopardy: Estoppel Pitfalls for Multiple Concurrently Filed Petitions

Foley & Lardner LLP on

In Intuitive Surgical, Inc. v. Ethicon LLC, the U.S. Court of Appeals for the Federal Circuit recently affirmed that estoppel under 35 U.S.C. § 315(e)(1) can apply as between concurrently filed inter partes review (IPR)...more

Knobbe Martens

Federal Circuit Review - February 2022

Knobbe Martens on

Ordered To Agree: Binding Settlement Agreement Provision Found Despite Absence of Singular, Executed Agreement - In Plasmacam, Inc. v. Cncelectronics, LLC Appeal No. 21-1689, the Federal Circuit held that an agreement on...more

McDermott Will & Emery

What Preclusion? Post-IPR Reexam Moves Forward

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit revived a petitioner’s validity challenge seeking ex parte review at the US Patent & Trademark Office (PTO), reversing a district court decision dismissing its complaint seeking...more

McDermott Will & Emery

Federal Circuit Issues Errata: IPR Estoppel Applies Only to Challenged Claims

The US Court of Appeals for the Federal Circuit issued an errata to its opinion in California Institute of Technology v. Broadcom Limited, clarifying that inter partes review (IPR) estoppel under 35 USC § 315(e) does not...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Case - February 2022 #3

Alarm.com Inc. v. Hirshfeld, Appeal No. 2020-2102 (Fed. Cir. Feb. 24, 2022)- In an appeal from the U.S. District Court for the Eastern District of Virginia, the Federal Circuit addressed whether the ex parte reexamination...more

McDermott Will & Emery

Too Much to Say? Word Limits Don’t Prevent Estoppel

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit found that the Patent Trial & Appeal Board (Board) did not err in finding that a petitioner was estopped from maintaining a third inter partes review (IPR) of a patent claim...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions: Uniloc 2017 LLC v. Facebook Inc., 989 F.3d 1018...

Facebook filed an inter partes review (IPR) petition against claims 1–8 of Uniloc 2017 LLC’s patent on Voice over Internet Protocol. Meanwhile, an IPR proceeding was already pending on claims 1–6 and 8 of the same patent,...more

79 Results
 / 
View per page
Page: of 4

"My best business intelligence, in one easy email…"

Your first step to building a free, personalized, morning email brief covering pertinent authors and topics on JD Supra:
*By using the service, you signify your acceptance of JD Supra's Privacy Policy.
- hide
- hide