This document provides an overview of patents, including types of patents, what can and cannot be patented, and the patent process. It discusses plant patents, limitations on patent rights, and provides examples of patent infringement and expiration. The document contains information on the Indian patent system, the various patent offices and their jurisdictions, and the stages and procedures for obtaining a patent in India, from initial filing through examination and potential grant. It aims to introduce readers to the basic concepts of the patent system.