Link list

Japan Patent Office(JPO)

https://www.jpo.go.jp/e/index.html

Japan Platform for Patent Information(J-Plat Pat)

https://www.j-platpat.inpit.go.jp/

Japan Patent Attorneys Association(JPAA)
https://www.jpaa.or.jp/en/

Japan Intellectual Property High Court

https://www.ip.courts.go.jp/eng/index.html

World Intellectual Property Organization(WIPO)

https://www.wipo.int/portal/en/index.html

European Patent Office(EPO)

https://www.epo.org/index.html

European Union Intellectual Property Office(EUIPO)

https://euipo.europa.eu/ohimportal/en/

United States Patent and Trademark Office(USPTO)

https://www.uspto.gov/

China National Intellectual Property Administration(CNIPA)

http://english.cnipa.gov.cn/

Korean Intellectual Property Office(KIPO)

https://www.kipo.go.kr/en/MainApp