Patent Public Search Patent Public Search, from the US Patent & Trademark Office, offers the ability to search for patents by keyword, inventor, publication number, date, and more. By default, your search queries three Databases: US-PGPUB (U.S. pre-grant applications to 3/2001), USPAT (full-text U.S. patents to 1970, classification and patent number searching to 1790) and USOCR (OCR scanned pre-1970 U.S. patents). Select ‘Advanced Search’ to use full query options as well as to further filter a patent search by database or organize documents through tagging. NOTE: This replaces internal legacy search tools PubEast and PubWest and external legacy search tools PatFT and AppFT.
