News & Analysis as of

Collateral Estoppel Patents Inter Partes Review (IPR) Proceeding

McDermott Will & Emery

A New Vision: Collateral Estoppel Doesn’t Extend to Related Claims

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit reversed a district court order excluding expert validity testimony based on collateral estoppel stemming from an inter partes review (IPR) proceeding of a related 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

Fenwick & West LLP

En banc Hearing Petition Filed on Recent Fed. Circ. Collateral Estoppel Decision

Fenwick & West LLP on

The Court of Appeals for the Federal Circuit has sparked debate following a recent ruling on the Patent Trial and Appeal Board's (PTAB) application of estoppel provisions in invalidating amended claims in inter partes...more

McDermott Will & Emery

Beware Equitable Doctrine of Issue Preclusion in Multiparty, Multivenue Patent Campaigns

Addressing for the first time whether an invalidity order merges with a voluntary dismissal for purposes of finality, the US Court of Appeals for the Federal Circuit held that an interlocutory order merges with the final...more

Pillsbury Winthrop Shaw Pittman LLP

Preclusion Confusion: Federal Circuit Decision in ZyXEL Communications v. UNM Rainforest Sparks Uncertainty at the PTAB

In ZyXEL, the petitioner unexpectedly received a second chance to argue against the patentability of the patentee’s substitute claims, even though the U.S. Patent Trial & Appeal Board (PTAB) had already found those claims...more

Morgan Lewis

Federal Circuit Clarifies Scope and Timing of Collateral Estoppel for Claims Under IPR

Morgan Lewis on

In a recent opinion, the Federal Circuit added several new wrinkles to amendment practice in inter partes review proceedings. The court affirmed the Patent Trial and Appeal Board’s determination that most of the original...more

McDermott Will & Emery

See Here: No Standing Based on Vague Future Plans or Adverse Priority Findings

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit dismissed an appeal from a final written decision in an inter partes review (IPR) proceeding, finding that the petitioner lacked standing because it suffered no injury in fact....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

Haug Partners LLP

Google v. Hammond: IPR and Collateral Estoppel

Haug Partners LLP on

On December 8 2022, the Federal Circuit in Google LLC v. Hammond Development Int’l, Inc. affirmed in part and reversed in part the PTAB’s final written decision of an IPR holding that Google failed to prove that certain...more

WilmerHale

Collateral estoppel in IPR proceedings requires that the issues of patentability be identical, not that the patent claims need to...

WilmerHale on

Precedential Federal Circuit Opinions - 1.  GOOGLE LLC v. HAMMOND DEVELOPMENT INTERNATIONAL, INC. [OPINION]  (21-2218, 12/8/2022) (Moore, Chen, and Stoll) - Moore, Chief J. Reversing in part and affirming in part...more

McDermott Will & Emery

Applying Collateral Estoppel in IPRs

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit considered whether a dependent claim invalidated by collateral estoppel also invalidates its parental independent claim. Google LLC v. Hammond Devel. Int’l, Inc., Case No....more

Knobbe Martens

Collateral Estoppel Is Applicable in IPRs When the Question of Patentability Is the Same

Knobbe Martens on

GOOGLE LLC v. HAMMOND DEVELOPMENT INTERNATIONAL, INC. - Before Moore, Chen, and Stoll. Appeal from the Patent Trial and Appeal Board. - Summary: Collateral estoppel applies to IPRs where differences in claims do not...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2022 #2

Google LLC v. Hammond Development International, Inc., Appeal No. 2021-2218 (Fed. Cir. Dec. 8, 2022) - In the only precedential patent decision this week, the Federal Circuit issued a decision concerning the effect of...more

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

2021 PTAB Year in Review: Analysis & Trends: IPR Estoppels: A Power Imbalance for Plaintiffs and Defendants

Inter partes review (IPR) proceedings raise complex estoppel issues that courts are grappling with and patent litigants must consider. Because patent challengers can assert invalidity in three different tribunals (the...more

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions: SynQor, Inc. v. Vicor Corp., 988 F.3d 1341 (Fed....

SynQor, Inc. appealed the inter partes reexamination decision of the Patent Trial and Appeal Board (Board) holding un- patentable as obvious original claims 1–19, 28, and 31 of SynQor’s patent, U.S. Patent No. 7,072,190 as...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

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

[Webinar] Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions - February 17th, 1:00 pm - 2:00 pm EST

Sterne, Kessler, Goldstein & Fox invites you to a webinar, "Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions," on Thursday, February 17, 2022. In conjunction with the release of the firm's...more

Akin Gump Strauss Hauer & Feld LLP

In IPR, No Collateral Estoppel Based on § 101 Ruling in District Court

A panel of the Patent Trial and Appeal Board instituted inter partes review of a patent, rejecting the patent owner’s assertion that the petitioner’s obviousness arguments were collaterally estopped by a district court’s...more

McDonnell Boehnen Hulbert & Berghoff LLP

C.R. Bard, Inc. v. Medline Industries, Inc. (Fed. Cir. 2021)

In a nonprecedential decision, the Federal Circuit gave a mixture of success and failure to the parties in four separate inter partes review decisions by the Patent Trial and Appeal Board, in C.R. Bard, Inc. v. Medline...more

Akin Gump Strauss Hauer & Feld LLP

Timing is Everything: Accused Infringer’s IPR Victory Estops Its Own Prior Art Invalidity Defenses, but Does Not Estop Plaintiff...

Inter partes review (IPR) proceedings can give rise to statutory and collateral estoppel. But these two bases for estoppel attach at different times, which can lead to asymmetrical outcomes in related district court...more

Haug Partners LLP

In SynQor, Inc. v. Vicor Corp., Federal Circuit Applies Collateral Estoppel to Related Inter Partes Reexamination Proceedings

Haug Partners LLP on

On February 22, 2021, the Federal Circuit addressed for the first time whether collateral estoppel (i.e., issue preclusion) was applicable in inter partes reexamination proceedings. The case is SynQor, Inc. v. Vicor Corp.,...more

McDermott Will & Emery

Collaterally Estopped: Do Not Re-Examine the Same Issues

In an appeal from an inter partes re-examination of a patent having both original and newly presented claims, the US Court of Appeals for the Federal Circuit ruled that a decision in earlier inter partes reexaminations of...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - March 2021

SynQor, Inc. v. Vicor Corp., Appeal No. 2019-1704 (Fed. Cir. Feb. 22, 2021) - In this week’s Case of the Week, the Federal Circuit held that common law collateral estoppel could arise from a factual determination made in...more

McDonnell Boehnen Hulbert & Berghoff LLP

Biogen Int'l GmBH v. Mylan Pharmaceuticals Inc. (N.D.W. Va. 2020)

The written description requirement has had a twenty-five year renaissance, particularly in the chemical and biotechnology arts as a way of restricting claim scope to what an inventor has actually invented (see Regents of the...more

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