Patents & Trademarks

• Delphion - Patent Information - Intellectual Property Research
• Derwent - Some free info.
• European Patent Office
• General Information about Patents - Q & A
• Intellectual Property Mall - Franklin Pierce Law Center
• Patent Cafe "Intellectual Property Portal"
• PatentLaw Links.com
• Patents - Links from Penn's Science and Engineering Library.
• TESS - Trademark Electronic Search System
• Thomson & Thomson includes IP News and IP Library - Intellectual Property
• U.S. Patents - includes U.S. Patents Manual Classifications.
• United States Copyright Office - Library of Congress
• United States Patent and Trademark Office - U.S. Dept.of Commerce
• World Intellectual Property Organization(WIPO)