Patents
Listings (3)
The USPTO is the federal agency responsible for granting U.S. patents and registering trademarks, providing a searchable database of all patents and trademark applications filed in the United States.
Google Patents provides free, searchable access to millions of patent documents from the USPTO and international patent offices, with powerful full-text search and prior art research tools.
The European Patent Office provides access to Espacenet, a free patent search database with over 130 million documents from around the world, serving inventors and intellectual property professionals.