Canadian Patents Database - Search, retrieve and study more than 1,400,000 patent documents. From the Canadian Intellectual Property Office.
European Patent Office - The executive body of the European Patent Organisation.
IP Australia - Government organisation providing legal information and registration material for trademarks, patents, designs and intellectual property.
National Informatics Center - Patent bibliographic database from the Government of India.
OHIM - The Office of Harmonization for the Internal Market (OHIM) registers the Community Trade Mark in the European Union.
Patent Office of the United Kingdom - Intellectual property information in the United Kingdom.
The State Intellectual Property Office of the People's Republic of China - Offering intellectual property and patent laws and regulations, with additional features available in Chinese.
U.S. Copyright Office - General information and publications.
U.S. Patent & Trademark Office - Patent and trademark information in the United States, including free database searching of registered trademarks, registration information, pricing and contact phone numbers.
USPTO Stopfakes.gov - Information for small businesses, on protecting intellectual property through patents, copyrights and trademarks.
World Intellectual Property Organization - Responsible for the promotion of the protection of intellectual property throughout the world, and for administration of various multilateral treaties dealing with intellectual property.