世界知的主有権機関(WIPO)(World Intellectual Property Organization)
米国特許庁(U.S. Patent and Trademark Office)
ヨーロッパ特許庁(European Patent Office)
欧州連合知的財産庁(European Union Intellectual Property Office)
Europe's Network of patent database(esp@cenet)
日本弁理士会(Japan Patent Attorneys Assosiation)