Patent Office Korean Industrial Property Office (http://eportal.kipo.go.kr:8581/home/portal/ehtml/index.html) Japanese Patent Office (www.jpo.go.jp/index.htm) US Patent and Trademark Office (www.uspto.gov) European Patent Office (www.epo.co.at/epo) Other Related sites Korea Industrial Property Right Information Service (http://www.kipris.or.kr/english/index.html) Korea Invention Promotion Association(www.kipa.org) Korea Institute Industrial Technology (http://www.kitech.re.kr/english/index.html) Japanese Patent Information Organization(www.japio.or.jp/index.html) Japan Intellectual Property Association(www.jipa.or.jp/english/index.html) Japan Institute of Invention and Innovation(www.jiii.or.jp/english/e.htm) Japan Patent Attorneys Association(www.jpaa.or.jp/english/index.html) IBM Patentserver (www.delphion.com) CNIDR(http://www.cnidr.org/) STO's Internet Patent Search System (http://www.ibiblio.org/patents/intropat.html) Biotechnology and US patents (www.nal.usda.gov/bic/Biotech_Patents) Micropatent (www.micropat.com) DIALOG WEB (www.dialog.com) European Patent Office Patent Information on the Internet (www.european-patent-office.org/online/index.htm) Canadian Patent Bibliographic Database (http://patents1.ic.gc.ca/intro-e.html) Chemical Patents Plus(CAS)(http://casweb.cas.org/) World Intellectual Property Organization (www.wipo.org)