The Best Patent Web Sites
There is a lot of technical information only available in the patent literature. These databases lead you to published patents from many countries.
- Google PatentsFastest place to go for all U.S. patents and some U.S. patent applications. Contains descriptions and images in PDF and HTML.
- European Patent Office - esp@cenetEsp@cenet contains European patents, World patents, and patent applications. Ability to search patents by origin country (i.e. CN for China). Downloadable and printable in PDF.
- SciFinder-nSciFinder-n (Cornell subscription): comprehensive coverage of literature in chemistry and related fields, including articles, patents, characterized chemicals, chemical reactions, and commercial sources. (Register first, use your Cornell email)
- The Lens (previously Patent Lens)Search patents and scholarly works
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