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Patents Collateral Estoppel

McDermott Will & Emery

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

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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

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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

Robins Kaplan LLP

Purdue Pharma L.P. v. Accord Healthcare Inc., - OxyContin® (Oxycodone HCl)

Robins Kaplan LLP on

Case Name: Purdue Pharma L.P. v. Accord Healthcare Inc., C.A. No. 22-913-WCB, 2023 WL 5835811 (D. Del. Sept. 8, 2023) (Bryson, J.) - Drug Product and Patent(s)-in-Suit: OxyContin® (oxycodone HCl); U.S. Patents Nos. 11,304,908...more

McDermott Will & Emery

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

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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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - October 2023 #2

Finjan LLC v. SonicWall, Inc., Appeal No. 2022-1048 (Fed. Cir. Oct. 13, 2023) In the Federal Circuit’s only precedential opinion this week, a majority affirmed summary judgment of non-infringement on appellant Finjan’s...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

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

PTAB Strategies and Insights Newsletter - May 2023

The PTAB Strategies and Insights newsletter provides quarterly updates and insights into how best to handle PTAB trial proceedings at the USPTO. It is designed to increase return on investment for all stakeholders looking at...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

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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

Knobbe Martens

Failure to Vacate Adverse Standing Decision Upon Settlement Stops Subsequent Suits

Knobbe Martens on

UNILOC USA, INC. v. MOTOROLA MOBILITY LLC - Before Lourie, Dyk, and Hughes.  Appeal from U.S. District Court for the District of Delaware. Summary: Failure to vacate an adverse ruling regarding a lack of standing when...more

Haug Partners LLP

Can Different Theories of Patent Invalidity Be Deemed Different Issues for Collateral Estoppel Purposes?

Haug Partners LLP on

The doctrine of issue preclusion, or collateral estoppel, prevents a party who unsuccessfully litigated an issue to a final decision in one proceeding from relitigating the same issue in future proceedings. In the patent...more

McDermott Will & Emery

No Second Bite at the Apple: Dismissal under Duplicative-Litigation Doctrine

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The US Court of Appeals for the Federal Circuit affirmed a district court’s dismissal of a second case between the same parties and asserting the same patent under the duplicative-litigation doctrine. Arendi S.A.R.L. v. LG...more

Jones Day

Claim Construction Clash Leads to Invalidity Reprieve

Jones Day on

In XR Communications, LLC v. D-Link Systems, Inc. Et. Al., a judge in the Central District of California found that certain asserted claims claiming to wireless communication technology were barred by the doctrine 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

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