Patent as intellectual property right -- Patentable inventions -- Pharmaceutical inventions -- Biotechnological inventions -- Specification -- Construction of a patent -- Patent application -- Exclusive marketing rights -- Grant of a patent -- Amendment of a patent -- Term of a patent -- Patent Office, Appellate Board, and central government -- Opposition proceedings -- Grounds of opposition -- Revocation proceedings -- Grounds of revocation -- Declaration of non-infringement -- Threat of infringement -- Infringement of a patent -- Infringement proceedings -- Transfer of a patent -- Compulsory licences -- Use and acquisition of inventions by government -- Appendices