Original source: United States Patent and Trademark Office. USPTO Patent Full-Text and Image Database. < http://patft.uspto.gov/netahtml/PTO/search-bool.html > accessed January 2008. Ancestry.com has searchable indexes; database results and some digitized images are available with a fee-based subscription. Free articles and helpful research materials.
A free public resource for patent system navigation worldwide. Full text search of over ten millions patent documents from the United States, Europe, Australia, and WIPO; up to seventy countries. More current years only; U.S. from 1976.
This database indexes United States patents in which a legal name change is identified in the document. Each record provides a link to the United States Patent and Trademark Office (USPTO) website. From the Wyoming State Library, Wyoming Patent & Trademark Resource Center.
The Full-Text Database contains all the 6.5 million US patents issued since 1790. In the form of searchable patent numbers and current US classifications hyperlinked to full-page images of each page of each patent.