David Yamaguchi specializes in content hosting issues and intellectual property. He concentrates his practice in the United States, Asia, India, and Europe.Inter partes review is a trial proceeding conducted at the Board to review the patentability of one or more claims in a patent. A patent holder can file a suit for infringement in the District Court or High Court. Filing a Lawsuit To initiate a patent infringement lawsuit in India, patent owners must first gather substantial evidence of infringement. The grounds for filing post-grant opposition are contained in section 25(2) of the Patents Act 1970. A patent enforcement action under Section 104 of the Patents Act, 1970, can be initiated before a district court or higher. Indian IP Litigation - How to take and win patent infringement and nullity cases in India, IP enforcement issues in India. Back off the plaintiff. Take some wind out of their sails.