U.S. Patent and Trademark Office
Headquarters in Alexandria, Virginia
The U.S. Patent and Trademark Office is the federal agency responsible for issuing patents and registering trademarks. A patent is a property right granted to an inventor by the government that gives the inventor the right to exclude others from making, using, selling or offering for sale her or his invention without permission for a limited period of time. In exchange, the inventor agrees to make the invention public.