Posts Tagged: blocking patent


Teaching Away, Commercial Success, and Blocking Patent Doctrines All Under the CAFC Spotlight

In The Chemours Company FC, LLC v. Daikin Industries, Ltd., Nos. 2020-1289, 2020-1290 (Fed. Cir. July 22, 2021) (“Chemours v. Daikin”), the Federal Circuit clarified three doctrines involved in …

Blockbuster Restasis Patent Goes Down at Federal Circuit a Victim of Rule 36

Without any explanation, analysis or justification, Chief Judge Prost, and Judges Reyna and Hughes affirmed the decision of colleague Judge Bryson. A patent to a blockbuster drug …

Expansion of the Blocking Patent Doctrine: Trading Logic for Gremlins

Since Merck & Co. v. Teva Pharmaceuticals, blocking patent arguments have arisen in the Federal Circuit primarily in the pharmaceutical patent context, and until now have largely been …
By Melissa Brand & Hans Sauer
3 years ago 4

Federal Circuit: Presence of a Blocking Patent Can Negate Strong Objective Indicia of Nonobviousness

The United States Court of Appeals for the Federal Circuit recently issued a ruling affirming a district court’s finding that certain pharmaceutical patent claims owned by …