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Q&A: Doing a patent search

The Stanford Libraries have a subscription to a database called Derwent Innovations Index via ISI's Web of Knowledge Interface. DII indexes the patent literature and is international in scope. It is possible to do both text and chemical structures searches in DII plus see cited/citing items as identified by a patent examiner. DII provides descriptive titles and abstracts that are often more informative than ones provided originally by inventor/assignee who submitted the patent. Full-text links are available for many items in DII's search results. While DII is an excellent database, the number of fields available for searching via the Web of Science interface are insufficient to determine if prior art exists.

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