General Patent Search Resources
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US Patent & Trademark Office - Patent Fulltext Database
Covers US patents issued from 1790 to the most recent weekly issue date. See https://www.uspto.gov/patents-application-process/search-patents for important notes on searching this database. -
European Patent Office (Espacenet PatentSearch)
European, US, PCT, Japanese and other worldwide patents. -
Google Patents
Covers patents and applications from USPTO, EPO, WIPO, DPMA, CIPO and SIPO. Updating frequency is not clear. -
Canadian Intellectual Property Office - Canadian Patent Search
A Canadian Patent database with data from 1989 to the present, and includes the patent number, classification, and title of patents. -
Japan Platform for Patent Information
A searchable database of Japanese patent abstracts, which includes the patent number, title, inventor, company, and abstract of the patent. -
Patent Lens
A user-friendly interface for searching patents from European, U.S., WIPO, and Australia. -
People's Republic of China: National Intellectual Property Office (CNIPA)
Search for Chines patent. Covers patents from China. Has machines translation system integrated.
Chemistry and Chemical Engineering Patent Search Resources
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SciFinder (first-time users see Registration)
SciFinder is a means of accessing the Chemical Abstracts database using a powerful and intuitive search engine to find references to articles. Search for chemical data using a molecular formula, chemical name, chemical structure, reaction components, author name, or topic of interest.
Note: Database use restricted to current Mines-affiliates only and requires an individual user account to access. First-time users, please register with a Mines email address through this link at http://libguides.mines.edu/scifinder_reg
Guides on Patent Search
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Patents and Designs - Guides from Queen's University LibraryHelpful guides on how to search and read a patent as well as overview of classification schemes.
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Guides on patents and patent search - UCLA LibraryA good collection of patent resources, including statistics about patent and social and business issues around patents.