News & Analysis as of

Written Descriptions Patent Applications Claim Construction

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

Lathrop GPM

Significant Federal Circuit Decision Redefines Prior Art Requirements

Lathrop GPM on

Last week a remarkably interesting Federal Circuit case was decided concerning whether an asserted reference was properly shown to qualify as prior art in the rejection of a pending patent application. The pending application...more

Bradley Arant Boult Cummings LLP

Searching for Claim Support in a Patent Specification? You Better Blaze a Trail

Last month the Federal Circuit affirmed a PTAB inter partes review (IPR) decision finding that the University of Minnesota’s patent claim directed to the anti-cancer drug sofosbuvir was not adequately supported by the written...more

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

2021 PTAB Year in Review: Analysis & Trends: Case Studies and Trends at the PTAB Involving 35 U.S.C. § 112

Over the last 20-plus years, US Court of Appeals for the Federal Circuit cases concerning written description and enablement have become a hot-button issue in the chemical and life sciences practices. The year 2021 was no...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

Buckingham, Doolittle & Burroughs, LLC

Dear Patenticity: Patent Prophet

Dear Patenticity, I have a chemical invention and I want to obtain the broadest coverage I can. The problem is I have not done much lab work, so I only have a couple real examples. I know that the written description...more

Knobbe Martens

Federal Circuit Review - October 2019

Knobbe Martens on

The PTAB Cannot Approve or Deny Certificates of Correction - In Honeywell International, Inc. v. Arkema Inc., Arkema France, Appeal Nos. 2018-1151, -1153, the Patent Trial and Appeal Board (“Board”) does not have the...more

International Lawyers Network

Can Design Patents Be Limiting in Enforcement?

Suppose that you have an invention disclosure for a design of an article that you want to protect?  When you review the invention disclosure, you notice that the design is ornamental, for example a pattern, on an article such...more

Sunstein LLP

January 2019 IP Update - New Guidelines Proposed for Functional Claiming in Computer-Related Inventions

Sunstein LLP on

In a second notice of proposed rulemaking (besides the one for patent eligibility) announced January 4, 2019 and published in the Federal Register on January 7, 2019, the Patent and Trademark Office has proposed guidelines...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Latest Federal Circuit Court Cases

PATENT CASE OF THE WEEK - SimpleAir, Inc. v. Google LLC, Appeal No. 2016-2738 (Fed. Cir. 2018) - In SimpleAir, Inc. v Google LLC, the Federal Circuit vacated a district court’s motion to dismiss pursuant to Rule...more

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