Science & Technology SEs

CAS -The most comprehensive source of chemical info.
arXiv -Many scientific articles. Operated by Cornell University.
ChemIndustry -Chemical site
CI -Corporate Intelligence, 6MM US patents, going back to 1790!
COS -Searching in expertise, facilities and inventions.
Delphion -Patent search.
Derwent -Search drug/ biotech abstracts and world patents.
EESE – Engineering E-journal SE, over 100 engineering e-journals.
IBM -IBM’s Patent Server, search technology showcase. FREE!
Joe Farmer -Agriculture and farm SE.
Knowledge Express –
Leeds -22 million documents, including patents.
MathWorld -“The web’s most extensive mathematics resource.”
Novelint -Enforcement, litigation, & licensing for infringed patents.
Pasteur Institute -Search page.
PubSci -Physical Science Literature, FREE government search!
RAM -Recent Advances in Manufacturing, 500+ journals
Questel-Orbit -French Telecom db for patent and scientific searching.
SBIR Research Center -Commercial site about govt SBIR grants. ScienceWorld -Growing.
Scientfic Frontiers –
SciSeek –
SemiSeek -Semi-Conductor Info.
Steelynx -Links to steelmaking and Steel-Related Tech.
USPTO -US Patent and Trademark Office.

Also see our SE Other page which has additional for-pay DBs.