A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: preclusion

Plaintiff Estopped as Nearby District Moves to Overtake
Plaintiff Estopped as Nearby District Moves to Overtake Abed Ismail, Unsplash

Judge Noreika had a rare holding estopping a plaintiff from asserting the lone patent-in-suit patent due to collateral estoppel after trial.

The Court held a five-day bench trial in Biogen Int'l GmbH v. Amneal Pharms. LLC, C.A. No 17-823-MN in December 2019, dealing with a host on invalidity issues, including obviousness, enablement, and written description. The parties completed post-trial briefing in March 2020, and and a final opinion was thus expected in the not-too-distant future.

Unfortunately for Biogen, they also sued a different defendant, Mylan, in the Northern District of West Virginia on the same patent. That case went to trial in February 2020, on the sole …