Canadian Intellectual Property Office

Canadian Trademarks Database (for searching Canadian trademark registrations and applications)

Canadian Patent Database (for searching Canadian patents and published applications)

Canadian Copyrights Database

CIPO - A Guide to Canadian Copyright Law

Canadian Industrial Designs Database

CIPO's Canadian Trade-marks Agents List

CIPO's Canadian Patent Agents List

United States Patent and Trademark Office

United States Copyright Office

World Intellectual Property Organization (WIPO)

WIPO's PATENTSCOPE Patents Database