U.S.- Harris Lee & Rogers LLP :
http://www.hlriplaw.com/
Korean Intellectual Property Office :
http://www.kipo.go.kr/
The United States Patent and Trademark Office :
http://www.uspto.gov
World Intellectual Property Organization :
http://www.wipo.int/
Taiwan Intellectual Property Office :
http://www.tipo.gov.tw/en/index.aspx
State Intellectual Property Office :
http://www.sipo.gov.cn/sipo_English/
The German Patent and Trade Mark Office :
http://www.dpma.de/english/index.html