A patent is a legal document that gives the owner exclusive rights to use, produce, and sell their invention for a limited period. Learn about the types, benefits, and costs of patents in India, and see examples of famous patents in real life. What is a Patent? A patent is a legal right granted to an inventor, providing exclusive use of their invention for a limited time, typically 20 years, in exchange for public disclosure of the invention’s details to promote further innovation and knowledge sharing. Introduction to Patents A patent is a legal instrument that grants an inventor the exclusive right to make, use, sell, and distribute their invention for a limited period, typically 20 years from the filing date. The essence of a ... What is a patent Types of patents Utility patent Design patent Plant patent Types of patent applications Provisional patent application Divisional patent application Additional patent application Complete patent application Difference between patents, trademarks and copyrights Criteria for patentability Novelty Inventive step Industrial application What is patent: Patent, is a legal document granted by the government giving an inventor the exclusive right to make, use, and sell an invention for a specified number of years. Patents are also available for significant improvements on previously invented items.