
A patent relating to a method of treating rheumatoid arthritis using rituximab recently survived its fourth IPR challenge. Celltrion, Inc. v. Biogen, Inc., IPR2016-01614 (PTAB Feb. 21, 2018). The PTAB determined that the Petitioners failed to establish that the challenged claims of the patent were obvious over prior art, in part, because of the Petitioners’ failure to establish the prior art status of the product label for RITUXIN®, which contains rituximab.
Continue Reading Rituxan Patent Spared by Failure to Establish Product Label as “Printed Publication”

March 13, 2018, marked the fifth anniversary of the transition from the previous “first to invent” system to the AIA’s “first to file” regime. The PTAB seemingly marked the occasion by instituting the first ever derivation proceeding one week later in Anderson Corporation v. GED Integrated Solutions, Inc., Case DER2017-00007, Paper 32 (March 21, 2018).




The Board recently denied a post grant review petition because the challenge was deemed redundant of the Patent Office’s earlier examination of similar claims in a related application.