U.S. patents can be searched through the United States Patent and Trademark Office website (http://www.uspto.gov/)

For general search methods, please refer to the following steps:

Enter the patent search page through the USPTO website (Official website of the Patent and Trademark Office - Patents - Search for Patents)

Select the search database, here we take the full-text database as an example: USPTO Patent Full-Text and Image Database (PatFT)

Enter Quick Search

You can query through the patent number, application number, applicant and other field information.

Or enter Advanced Search

Edit your own search terms for more complex queries.