The document summarizes the key aspects of the Indian Patent Act and its amendments. It discusses what constitutes a patentable invention under the Act, including the criteria that an invention must be novel, non-obvious, and useful. It also outlines what types of inventions are not patentable, such as discoveries occurring in nature. The summary traces the history and amendments of the Patent Act since 1911, including allowing both product and process patents in 1970 and shifting to product patents in 1999 when India joined the TRIPS agreement. It provides an example case study of Apple v. Samsung regarding alleged copying of iPhone and iPad designs.