links & resources

Google Patent Search

https://patents.google.com/

United States Patent and Trademark Office (USPTO) http://www.uspto.gov/

USPTO Patent Search Site
https://ppubs.uspto.gov/pubwebapp/static/pages/landing.html?MURL=PatentPublicSearch

US Patent file downloads (PDF versions-free)
http://www.pat2pdf.org/

World Intellectual Property Organization (WIPO)
http://www.wipo.int/portal/index.html.en

WIPO Patent Search
http://patentscope.wipo.int/search/en/search.jsf

Canadian Intellectual Property Office
http://www.cipo.ic.gc.ca/eic/site/cipointernet-internetopic.nsf/eng/Home?OpenDocument

European Patent Office (EPO) & Search site
http://www.epo.org/index.html

United Kingdom Intellectual Property Office
http://www.ipo.gov.uk/

Japanese Patent Office
http://www.jpo.go.jp/

State of Intellectual Property Office People’s Republic of China (SIPO)
https://english.cnipa.gov.cn/

Taiwan Patent Search Page
https://www.tipo.gov.tw/en/lp-277-2.html

Indian Patents Design and Trademark Site
https://ipindia.gov.in/patents.htm

Australian Government Intellectual Property Office
http://www.ipaustralia.gov.au/

New Zealand Intellectual Property Office Patents
http://www.iponz.govt.nz/cms/patents

Korean Intellectual Property Rights Information Service
http://eng.kipris.or.kr/

Brazilian Patent Office
http://www.brazilpatents.com/

National Library of Medicine-National Institute of Health Publication
http://www.ncbi.nlm.nih.gov/sites/entrez