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Law Research

Patents

US Patent and Trademark Office at www.uspto.gov has a patent full-text and image database, as well as instruction for filing for a patent.  Site also has extensive information on trademarks and intellectual property law and policies.

Indianapolis-Marion County Public Library has a collection of US patents from the early 1970's to the present.  see the IMCPL Patent Information page.

Delphion (formerly the IBM patent server)
This engine allows you to search United States, European, Japanese, and World Patents by keyword or patent number. This site requires registration before you can use their services. Basic searching is free, but full access to Delphion's services require a paid subscription.

Espacenet (European Network of Patent Databases)
Search for European, US, and Japanese patents.

Last updated by jduvall on 02/15/2013