Cooperation Firm
U.S.- Harris Lee & Rogers LLP : http://www.hlriplaw.com/
JAPAN - SK IP LAW FIRM : http://www.skiplaw.jp/
Korea
Korean Intellectual Property Office : http://www.kipo.go.kr/
KIPO - Portal : http://www.patent.go.kr/
KIPO - Search site : http://www.kipris.or.kr
United States
The United States Patent and Trademark Office : http://www.uspto.gov
Japan
Japan Patent Office : http://www.jpo.go.jp/
Europe
Europe Patent Office : www.epo.org
EPO - portal : www.epoline.org/portal
European Publication Server : https://data.epo.org/publication-server/?lg=en
WIPO
World Intellectual Property Organization : http://www.wipo.int/
WIPO - Search site : http://www.wipo.int/pctdb/en/
Time Limits for Entering National : http://www.wipo.int/pct/en/texts/time_limits.html
Taiwan
Taiwan Intellectual Property Office : http://www.tipo.gov.tw/en/index.aspx
China
State Intellectual Property Office : http://www.sipo.gov.cn/sipo_English/
Germany
The German Patent and Trade Mark Office : http://www.dpma.de/english/index.html