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Patents: Finding Patents Online

Patent links for searching and downloading patents.

Patent Searching - Public & Free Sources

Patent Searching - Duke Database Access

Introduction to Derwent Innovations Index

Duke University Libraries recently acquired access to Derwent Innovations Index through Web of Science.  This is an excellent resource with over 23 million basic inventions and 51 million patents from 40+ worldwide patent-issuing authorities.  Watch the 4min introduction video below from  Web of Science.