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How to conduct a patent search, legal references and classifications, free online patent search databases, and professional search providers.
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Patent Searching 101
Step to step guides to searching for patents online using the inventor's name, keywords, or patent numbers. Quick Tutorial - "How To" Conduct A Patent Search
Outlines patent searching on one page. Patent and Trademark Depository Library
A Patent and Trademark Depository Library or PTDL is a library which is designated by the USPTO to house copies of US patents and trademarks. Patents and trademarks may be searched in person at the PTDLs. PTDL Resources
A list of online classifcation systems, databases, and other materials. The list also outlines a suggested procedure for conducting a patent search with the USPTO. United States Patent and Trademark Office
List of all visitable PTDL libraries or use one of the Patent Full-Text and Full-Page Image Databases. The Full-Text Database now offers all US patents issued since 1790. |
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