Patents

U.S. Patent & Trademark Office
Canadian Intellectual Property Office
United Kingdom Patent Office

Trademarks

U.S. Patent & Trademark Office
European Community Trademark Office
Canadian Intellectual Property Office
United Kingdom Patent Office
Japanese Patent Office

Copyrights

U.S. Copyright Office

Courts

U.S. Court of Appeals for the Federal Circuit
Directory to Courts
Federal Judicial Center

Federal Government

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Federal Trade Commission
Food and Drug Administration
United States Patent & Trademark Office
United States International Trade Commission

Professional Organizations

American Intellectual Property Organization
International Trademark Association
Licensing Executive Society
Association of University Technology Managers

Philadelphia Information

Official Philadelphia Site
Philadelphia Information
Philadelphia.com