Combatting Lack of Assignor Estoppel in IPRs (Maybe), PTAB Litigation Blog
Visit the PTAB Litigation Blog.
Assignor estoppel is an equitable doctrine that prevents a party who assigns a patent to another from later challenging the validity of the assigned patent. As reported in a prior post, the Federal Circuit recently stated that assignor estoppel does not apply to inter partes review (IPR) proceedings.
Read the full article at ptablitigationblog.com.
