The European Patent Office (EPO) examines European patent applications, enabling inventors, researchers and companies from around the world to obtain protection for their inventions in up to 46 countries through a centralised and uniform procedure that requires just one application.
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香港Patent Search
智慧芽
Global Design Database
A world-wide collection of designs data; including WIPO Hague registrations and information from participating offices.
J-PlatPat
日本专利信息平台（J-PlatPat）
大为专利搜索引擎
United States Patent and Trademark Office
The United States Patent and Trademark Office (USPTO) is the federal agency under the Department of Commerce and is responsible for granting U.S. patents and registering trademarks. Our mission is to drive U.S. innovation and global competitiveness for the benefit of all Americans.