Table 2.

Databases of patents and scientific publications

Name	Description	URL
United States Patent and Trademark Office: patent full-text and full-page image database	For searching and printing US patents and published US applications	http://www.uspto.gov/patft/index.html	[20]
European Patent Office: esp@cenet	For searching and printing worldwide patents and patent publications	http://ep.espacenet.com/search97cgi/s97_cgi.exe?Action=FormGen&Template=ep/EN/home.hts	[21]
Japan Patent Office: quick guide	For searching and printing Japanese patents and patent publications	http://www.jpo.go.jp/quick_e/index_search.htm	[22]
World Intellectual Property Organization: Intellectual Property Digital Library	For searching and printing international (PCT) applications	http://www.wipo.int/ipdl/en/index.jsp	[23]
NCBI PubMed	Database of biomedical research articles	http://www.ncbi.nlm.nih.gov/entrez/query.fcgi	[24]
Thomson Derwent	A collection of databases of biotechnology research articles for fee-based searching and retrieval	http://www.derwent.com/	[25]
Chemical Abstracts Databases	A collection of databases of chemical and pharmaceutical research articles and compounds for fee-based searching and retrieval	http://www.cas.org/casdb.html	[26]
STN	A collection of databases of biotechnology research articles for fee-based searching and retrieval	http://www.cas.org/stn.html	[27]
Google Scholar	A system for searching academic articles and other scholarly publications, and their citations	http://scholar.google.com/	[28]