News & Analysis as of

Patent Applications Prior Art Patent Trial and Appeal Board

A&O Shearman

The Federal Circuit Rejects PTAB’s Use Of Traditional Construction Of “Consisting Essentially Of”

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On June 30, 2025, the U.S. Court of Appeals for the Federal Circuit vacated a decision by the U.S. Patent Trial and Appeal Board (the “Board”) and remanded the case for further proceedings using a narrower construction of the...more

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

The Evolution of “New” in the “Substantial New Question” Standard in Patent Reexamination

As the Patent Trial and Appeal Board and the Acting USPTO Director refocus challengers, and with them Patent Owners, towards reexamination from inter partes review proceedings, the need to understand the nuance of “new” in...more

Volpe Koenig

When an IDS Comes Back to Haunt You: Lessons from iRhythm v. Welch Allyn

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Patent attorneys are well-versed in the function of the Information Disclosure Statement (IDS) during prosecution. We understand that listing prior art in an IDS satisfies the duty of candor, helps insulate patents from...more

Fitch, Even, Tabin & Flannery LLP

Priority Denied, Patent Derailed: When One Filing Cancels Out the Other

On April 22, 2025, the Federal Circuit issued a decision In re: Bonnie Iris McDonald Floyd that underscores a critical and often overlooked risk in design patent prosecution: relying on a utility patent application for...more

ArentFox Schiff

Designers Beware: Prior Utility Patent Lacking Written Support Can Anticipate Later-Filed Design Patents

ArentFox Schiff on

In its recent In re Floyd opinion, the US Court of Appeals for the Federal Circuit upheld a decision by Patent Trial and Appeal Board (PTAB) to reject a design applicant’s priority claim to an earlier utility filing for...more

DLA Piper

What is a “Clear and Unmistakable” Prosecution History Disclaimer?

DLA Piper on

The Federal Circuit’s March 21, 2025 decision in Maquet Cardiovascular LLC v. Abiomed Inc. et al. (No. 2023-2045) and the recent Patent Trial and Appeal Board (PTAB) Delegated Rehearing Panel decision in SynAffix B.V. v....more

Morrison & Foerster LLP

Discretionary Denials—Act II

On March 26, 2025, the Acting Director of the United States Patent and Trademark Office fundamentally changed how the Patent Trial and Appeal Board (“PTAB”) initially considers petitions in post grant proceedings under the...more

Wilson Sonsini Goodrich & Rosati

Method of Treatment Claim’s Limiting Preamble Must Satisfy the Written Description Requirement

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit issued a decision in the case of In Re: Xencor, Inc. In this Appeal from the Appeals Review Panel of the Patent Trial and Appeal Board (ARP), with regard to...more

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

Federal Circuit Reaffirms “Carried Forward” Requirement for Provisional Priority in Reexams and Reissues

Requesters should make sure to double cite to non-provisional and provisional if they require a provisional filing date for prior art....more

Morgan Lewis

Priority Catch-22: Federal Circuit Chills Design Patent with Rejection of Priority Claim

Morgan Lewis on

The US Court of Appeals for the Federal Circuit recently issued a decision that highlights a risk in design patent prosecution—specifically, attempting to claim priority to a utility application. In re Floyd, the Federal...more

MoFo Tech

Federal Circuit Clarifies Requirements for Prior Art Under Pre-AIA 35 U.S.C. § 102(e)

MoFo Tech on

Knowing what qualifies as prior art is a core requirement of patent practitioners—whether in life sciences, in the technology sectors or in post-grant proceedings. It is important to keep abreast of changes to the rules,...more

Fitch, Even, Tabin & Flannery LLP

Federal Circuit Limits Reliance on Provisional Priority Date Under Section 102(e)(1)

On March 24, the Federal Circuit held in In re Riggs that for a published non-provisional patent application to be prior art under pre-AIA 35 U.S.C. § 102(e)(1) based on an earlier provisional filing date, all citations to...more

McDermott Will & Emery

Detour Ahead: New Approach to Assessing Prior Art Rejections Under § 102(e)

The US Court of Appeals for the Federal Circuit established a more demanding test for determining whether a published patent application claiming priority to a provisional application is considered prior art under pre-America...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Riggs Decision: 35 USC 102(e) Prior Art Requires Written Description Support...

Goodwin on

On March 24, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Riggs (the Riggs decision) that vacated a decision of the Patent Trial and Appeal Board (PTAB) of the US...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: In re: Riggs

In re: Riggs, Appeal No. 2022-1945 (Fed. Cir. Mar. 24, 2025) Our Case of the Week explores the power of an examiner to request a rehearing after the Board has entered a decision on an application. The case also relates to...more

A&O Shearman

Federal Circuit Clarifies Requirements For A Prior Art Reference’s Entitlement To The Filing Date Of A Provisional Application To...

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On March 24, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) issued an opinion vacating and remanding a decision of the U.S. Patent Trial and Appeal Board (the “Board”) that a published patent application...more

Kilpatrick

PTAB: A Provisional Application Must Provide Written Description Support for Relied Upon

Kilpatrick on

In a decision issued today, the Federal Circuit addressed the issue of whether an Examiner can rely on the filing date of a provisional application under pre-AIA 102(e) to support a rejection based on a later-filed and...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Xencor Decision: Jepson Claims Require Written Description for Their...

Goodwin on

On March 13, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Xencor, Inc. (the Xencor decision). The Xencor decision affirms the decision of the Appeals Review Panel...more

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

Antedating Prior Art in Reissue and Reexamination: Part 1

Takeaways - - Pre-AIA patents may be able to “swear behind” prior art applied in reissue and reexamination. - “Swearing behind” has limits and obtaining sufficient evidence to establish prior invention may be difficult to...more

Baker Botts L.L.P.

The Impact of Prosecution Length on Invalidity Outcomes in Patent Litigation

Baker Botts L.L.P. on

This Article analyzes over 89,000 patents litigated over a twenty-year period to determine how the number of office actions to allowance during prosecution impacts rates of invalidity during subsequent litigation. Many...more

Alston & Bird

Intellectual Property Litigation Newsletter | February 2025

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Welcome to the Intellectual Property Litigation Newsletter, our review of decisions and trends in the intellectual property arena. In this edition, we learn that the Federal Circuit always says never, patent publications...more

Vorys, Sater, Seymour and Pease LLP

The Precedent: Federal Circuit Clarifies Timing Issues Associated with Pre-AIA Patent Applications in Lynk Labs, Inc. v. Samsung...

In this edition of The Precedent, we outline the recent federal circuit decision in Lynk Labs, Inc. v. Samsung Elecs. Co. This case addresses the date on which a pre-AIA published patent application obtains its status as...more

Hudnell Law Group

Published but not Public? Federal Circuit Confirms Published Patent Applications Count as Prior Art from Filing Date in IPRs.

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On January 14, 2025, the United States Court of Appeals for the Federal Circuit issued a precedential decision in Lynk Labs, Inc. v. Samsung Electronics Co., No. 23-2346 (Fed. Cir. Jan. 14, 2025), addressing whether a...more

Dorsey & Whitney LLP

When Is a Published Patent Application Prior Art?

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In a precedential opinion entered on January 14, 2025, the United States Court of Appeals for the Federal Circuit affirmed a decision of the Patent Trial and Appeal Board (“PTAB”) invalidating claims of a patent on...more

Fitch, Even, Tabin & Flannery LLP

IP Alert: Federal Circuit Clarifies What Is Deemed Prior Art in an IPR

On January 14, in Lynk Labs, Inc. v. Samsung Electronics Co., Ltd., the Federal Circuit held that a published patent application can be prior art in an inter partes review (IPR) based on the application’s filing date, not the...more

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