Posts Tagged: written description


Mission Impossible? How U.S. Drafters Can Minimize Support/Clarity Issues Under Article 84 EPC

When drafting Patent Cooperation Treaty (PCT) applications, or applications intended to be prosecuted abroad, a U.S. drafter inevitably faces the challenge of providing a description in …
By Enrica Bruno
2 months ago 0

Federal Circuit Deems Written Description Requirement Satisfied if Specification Identifies the Claimed Invention in a Definite Way

The United States Court of Appeals for the Federal Circuit recently issued a ruling reversing a district court’s grant of summary judgment of non-infringement and invalidity …

Federal Circuit Corrects District Court’s Claim Construction

The United Stated Court of Appeals for the Federal Circuit recently held that a district court erred in its claim construction and vacated the district court’s …

District of Delaware Makes it Harder to Corner the Market on Antibody Patents in MorphoSys v. Janssen

Patents covering an antibody are often claimed by the antibody’s function (the residues where it binds to the antigen) rather than its structure (amino-acid sequence). This …
By Zachary Silbersher
6 months ago 2

Even If New Matter, Entire Application Relevant to Assessing Compliance with Written Description Requirement

Several weeks ago, in a non-precedential opinion, the Court of Appeals for the Federal Circuit issued a decision in In re: David Tropp, which vacated and remanded …
By Gene Quinn & Steve Brachmann
7 months ago 1

Supreme Court Denies Cert in Two-Way Media v. Comcast, Refuses Another 101 Case

The U.S. Supreme Court denied a petition for writ of certiorari in Two-Way Media Ltd. v. Comcast Cable Communications, refusing to hear yet another appeal in …
By Gene Quinn & Steve Brachmann
9 months ago 11

Time Warner Asks CAFC to Vacate $139.8M Reasonable Royalty Awarded to Sprint

John O’Quinn, partner at Kirkland & Ellis and counsel representing Time Warner at the Federal Circuit, argued that the entire verdict should be vacated, not just the …
By Gene Quinn & Steve Brachmann
9 months ago 1

How to Write a Patent Application

Writing a patent application is not as easy as many think. Indeed, the concept of usefully describing the invention, which on its face seems easy enough to …
By Gene Quinn
11 months ago 1

Which Invalidity Avenue to Take: Inter Partes Review Verses Post-Grant Review

The United States Patent and Trademark Office (USPTO) provides invalidity tools via inter partes review (IPR) and post-grant review (PGR), but which route is better? ...  PGRs are …
By Ryan Kenny
12 months ago 5

Patents Invalidated for Lack of Written Description

Disclosure of one way to attach or position a roof assembly (a species) did not provide an adequate written description of other ways to attach or position …

Patenting Antibodies: Written Description Considerations in Antibody Patents

The Amgen v. Sanofi decision put most functional antibody claims into question, including epitope and competitive binding claims, as well as antibody claims based on a newly …
By Li Feng & Stacy Lewis
1 year ago 2

Written Description Support for Claimed Range Requires More than Broad Disclosure

Appellant General Hospital Corp. (“GHC”) appealed the Board’s dismissal of an interference because the claims of its involved patent application lacked sufficient written description. The disclosure …

PCT Species Claim Sufficient to Support Priority Claim of Later-filed Genus Claim

The issue was whether the PCT, which disclosed a “connection to fibre optics bundle which provides for lighting” was a sufficient written description to support the “light …

USPTO to Clarify Guidance on Written Description of Antibodies

The memorandum points to Amgen for stating that the “newly characterized antigen” test could not stand because it contradicted the quid pro quo of the patent system …

Idenix Loses Patent on HCV Treatment that Supported $2.54 Billion Infringement Verdict

In invalidating the Idenix patent, the Delaware district court effectively overturns what had been the largest award for royalty damages in a U.S. patent infringement case …
By Steve Brachmann
1 year ago 4