Patent Search Links
Google Patents - searching of US patents & published applications and free download PDF's
http://www.google.com/patents
The USPTO -searching of US patents and published applications:
www.uspto.gov/patft/index.html
The World Intellectual Property Organization's Intellectual Property Digital Library DB:
www.wipo.int/ipdl/en/
The European Patent Office:
http://ep.espacenet.com/
JAPIO - Patent Abstracts of Japan
http://library.dialog.com/bluesheets/html/bl0347.html
Delphion Research intellectual property network For international patent and us patent information www.delphion.com
Non-patent prior art searching
Internet search engines
www.google.com
www.ask.com
IEEE Journals and Conference Proceedings: http://ieeexplore.ieee.org/Xplore/DynWel.jsp
Research Index of the NEC Research Instituteliterature in computer and information science. full-text index of scientific literature: http://citeseer.ist.psu.edu
APS Journals - Online Archive search engine http://prola.aps.org/search
Internet Archivewww.archive.org
NLM Medline Gateway - Medical abstracts
http://gateway.nlm.nih.gov/gw/Cmd?GMContactUs%26loc=lhc