Finding Patents
- SciFinder
- Chemical patents worldwide are comprehensively indexed and cross-referenced in Chemical Abstracts. For details, see the CAS Patent Coverage page. SciFinder links to available free full text patents via ChemPort.
- U.S. Patent and Trademark Office
- Search and download fulltext U.S. patents since 1976 and patent TIFF images since 1790, plus published applications since 2001.
- pat2pdf.org
- If you have a patent number, this is a quick and easy shortcut to fetching PDF files of all U.S. patents from the USPTO site without actually going there.
- Google Patent Search
- Search and retrieve full text of all U.S. patents since 1790. Applications and most recent patents are not included.
- FreePatentsOnline
- Search US, EP, JP (abstracts), and WIPO (PCT). Chemical search features are available via SureChem Free.
- espacenet.com
- European Patent Office search site for patents and applications: EP, WIPO/PCT, US, GB, FR, DE, JP, and over 70 countries. Free page-by-page PDFs of available documents. (This is the site SciFinder links to for non-U.S. patents.)
- DEPATISnet
- From the German Patent and Trademark Office (Deutschen Patent- und Markenamtes, DPMA). Search patents and applications; links to the full text
patent when available. PDF fulltext must be downloaded one page at a time.
- SurfIP
- Singapore-based portal that allows searching of US-1790+, WO-97+, EP-97+, CH, CA, Taiwan and Singapore patents and JP patent abstracts.
- Patentscope
- Search international patent applications (PCT) from WIPO.
For more information about chemical patent searching, see Indiana University's Chemical Information Sources Wiki.
Basic Patent Information: Help page and tutorials from the UT Engineering Library.
Patents
