Subject portals - Patent information

The Patent Office of the Republic of Poland
Information about mission, activities and goals of The Patent Office of the Republic of Poland. Current law regulations and projects, list of databases on CD-ROMs and others.

Polska Izba Rzeczników Patentowych (Polish Chamber of Patent Spokesmen) (Polish version only)
Web Page of Polish Chamber of Patent Spokesmen.

EPO - European Patent Office
Databases containing information about patents of European Patent Office and patent offices from European Union countries (base contains over 30 millions of documents, also from Poland).

United States Patent and Trademark Office
Information about patents in United States.

CIPO's Canadian Patent Database
Database with Canadian patents.

Derwent Innovation
Information service about patents and markets. Offers, inter alia, search of databases for patents in United States, Europe, Japan (paid service).