This Paper provides a concise summary of patent damages in US and India. Any person who invent something which is new as well as unique, which can help in reduction of cost that every class of people get the benefit of the invention, and also, improvement of technologies. On this invention he/she can get a patent for a period of twenty years, and during this period if any person is using, selling the invention, he shall be liable for infringement and patentee or patent holder has right to claim damage from infringer, patent can be extremely important for the patentee as well as world. The general question is that damages will depend on the country where you infringe. Different countries have different laws. In US law, provides Damages in section 35 U.S.C. 284 and the Indian Patent Act 1970, no express provision has been provided, but section 108(1) talks about Damages.