Resources for Patent Offices Search

USPTO Patent Full-Text and Image Database (PatFT)

Searching Full Text Patents (Since 1976)

Customize a search on all or a selected group of elements (fields) of a patent.

Searching PDF Image Patents (Since 1790)

Searches are limited to patent numbers and/or classification codes for pre-1976 patents.

USPTO Patent Application Full-Text and Image Database (AppFT)

Search for Full-Text and Image versions of patent applications. Customize searches on all fields of a patent application in the AppFT for Full-Text searches.

Searches are limited to patent numbers and/or classification codes for Full-Page images.

View Publication Full-Page Images

International Patent Offices

To see if your idea has been patented abroad, you’ll want to refer to searchable databases made available from other International Intellectual Property offices.

Free online access to patent collections is provided by many countries. Some available databases include:

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