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Online Patent and Trademark Resources

Patents
Conducting a Patent Search at a Patent and Trademark Depository Library (PTDL)
Patent Searching Tutorial and Guide to Online Resources and Information
Interactive tutorial from the McKinney Engineering Library at the University of Texas at Austin
Schreyer Business Library's Patent Search Tutorial
Informative tutorial from Penn State University Libraries with information about patents and the patent search process
esp@cenet
European Patent Office's Worldwide database covering more than 50 countries. Search U.S. patents back to 1920.
Patent Databases
Annotated links to patent databases from a number of different countries
USPTO Patent Databases
Includes "Issued Patents" and "Published Applications" databases
Trademarks
Trademark Searching
Guide created by the Wyoming State Library
Searching for Federal Trademarks
Guide created by Fogler Library, University of Maine
Trademark Databases of the World
Annotated links to trademark databases from a number of different countries
USPTO Trademark Electronic Search System (TESS)
Search for more than 3 million pending, registered and dead federal trademarks
USPTO Trademark Assignments
All trademark assignments recorded at the USPTO after 1955
Inventor Resources
Independent Inventor Resources
Helpful links for inventors from the U.S. Patent and Trademark Office
Idaho Small Business Development Center (SBDC)
Offers "free and low-cost information designed to educate and support Idaho small business owners and managers, inventors, and potential entrepreneurs."
Invention Promotion Firms
Facts for consumers from the Federal Trade Commission
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