Research Guides: Trademarks & Trade Names: Trademark Databases

National and International Trademark Databases

Canadian Trademarks Database (CIPO)
Search Canadian trademarks and service marks from 1865 to the present.
Global Brand Database (WIPO)
Search 34.7 million trademark applications and registrations from more than 35 countries including Canada, Mexico and the U.S.
MARCANET (IMPI)
MARCANET is the official trademark database of the Mexican Institute of Industrial Property. Search published applications and registrations of trade and service marks, commercial slogans and trade names.
TESS - Trademark Electronic Search System (USPTO)
Search U.S. trademark and service mark applications and registrations from the late 1800s to the present.
TMView (EUIPO)
Search 35 million trademarks from 54 national and regional trademark offices including Canada, Mexico and the U.S. TMView is maintained by the European Union Intellectual Property Office.

NUANS Name Search System
A fee-based service for searching Canadian corporate names and trademarks registered at the federal and provincial levels.
State Trademark Resources
A list of U.S. state trademark websites and related resources maintained by the U.S. Patent and Trademark Office.
Ontario Public Record Search
This website provides instructions on how to search for business/corporation names registered in Ontario.