To embed, copy and paste the code into your website or blog: The U.S. Patent and Trademark Office (Patent Office) designated new Patent Trial and Appeal Board (Board) precedents protecting patent owners from multiple inter partes review (IPR) challenges. The Board decisions included one that concerned the identification of a real party in interest (RPI) and when multiple petitions challenging the same patent are not permitted. In RPX Corp. v. Applications in Internet Time, LLC, 1 the Board held that the petitioner, RPX, was time-barred because its client Salesforce was an unnamed RPI that was served with an infringement complaint more than one year before RPX filed the petition.