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Patent Resources

a list of patent resources for inventors and researchers

U.S. Patent Searching

Patent Searching Guide - with links to online tools and databases

    Patent Searching Tutorials:

    Additional searching resources:

    • Patent Indexes (University of Michigan) - Collection of the Annual Report of the Commissioner of Patents for the mid to late 19th century. Check the site for the latest holdings.
    • USPTO Patent Search Templates -- Templates developed by the USPTO that define the field of search, search tools and search methodologies for many classification areas.
    • U.S. Alien Property Custodian Documents: Patent Applications Published During WWII -- Beta site containing bibliographic data for 2,964 patent applications published by the USPTO in 1943. Most of the applications were owned by nationals of enemy and enemy-occupied nations. More than 50% were eventually abandoned, but the documents are considered prior art and have been cited in about 1,200 patents since 1947.

    General information

    Patent laws and regulations

    International Patent Information

    • World Intellectual Property PCT Database -- search international patent application data back to January 1, 1997.
    • Espacenet -- Europe's Network of patent databases.
    • CAMBIA Patent Lens - a free full-text patent search database containing over 5,500,000 patents and patent applications from the PCT, US, and EPO databases with patents from additional jurisdictions to be added in the next two years.
    • Trilateral Web Site -- a joint web site of the European Patent Office, the Japanese Patent Office, and the U.S. Patent and Trademark Office.
    • British Library Patent Resources -- a collection of patent searching resources and links to intellectual property websites worldwide.
    • Scitopia.org -- Free federated search portal containing the electronic libraries of thirteen leading science and technology societies. Includes 150 years of peer-reviewed journal articles and conference proceedings. Offers full-text articles searchable by article title or author name. Researchers at institutions with subscriptions to the content are automatically authenticated and can access the content directly. Also offers a pay-per-view option for researchers at institutions who do not subscribe to the content. Patent researchers can use a keyword search to locate patents on Esp@cenet, the Japan Patent Office, and the USPTO.
    • USPTO List of Other Intellectual Property Offices
    • Concordance, U.S. Patent Classification (USPC) to International Patent Classification (IPC)

    Local Inventor/Business Resources
    Personal tools