Mr. Prem Patil prepared this document on patents under the guidance of Mrs. Swati Gupta at Apeejay Stya University in Sohna. The document discusses intellectual property rights including patents, designs, trademarks, and copyright. It defines what constitutes an invention and provides an overview of the history of patents. The stages to obtain a patent including filing, examination, grant or withdrawal are outlined. The document also discusses who benefits from patents, the rights they provide, and the importance and limitations of patent information.