JD Supra

Examples in Specification Did Not Provide Written Description Support for Bounded or Closed Ranges

The Federal Circuit Court of Appeals affirmed the Patent Trial and Appeal Board's determination that a patent specification did not provide written description support for range limitations in the ...
JD Supra

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. 1 In this Appeal from the Appeals Review Panel of the Patent Trial and Appeal ...
IPWatchdog

Patent Application Drafting: Using the Specification for more than the ordinary plain meaning

You may have heard that it is inappropriate to read into a patent claim from the specification. That isn’t entirely accurate, although you will hear that popular misconception often repeated even by ...
IPWatchdog

Patent Drafting: Getting the Broadest Supportable Claim Scope

EDITOR’S NOTE: This article is an excerpt from Rules of Patent Drafting: Guidance from Federal Circuit Cases, 2014 Edition, which is now available at Amazon.com. This is the sixth installment of this ...