Tag Archive for drug patents

PTAB Rejects Allergan’s Tribal Sovereign Immunity Claim

On Friday, the Patent Trial and Appeal Board (PTAB) issued a ruling rejecting Allergan’s sovereign immunity claims. As Patent Progress has previously described [1][2][3], Allergan sold their patents to a Native American tribe, licensed them back, and required the tribe to claim sovereign immunity against inter partes reviews.  But, as also previously described here, there…