Patents

International patents database from the European Patent Office (EPO). Covers over 80 countries and includes 60+ million patents. Foreign language patents granted by the EPO or filed by the Patent Cooperation Treaty (PTC) have English language titles and claims.

From the World Intellectual Property Organization (WIPO). Full Text search of International Patent Applications under Patent Cooperation Treaty (PCT) from 1978.

From the Canadian Intellectual Property Office (CIPO). Contains over 2 million documents. Titles, Names, and Classification numbers can be searched from 1869+. Full Text can be searched from August 15, 1978+.

Australian Patents search database.