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Dartmouth College Library
Dartmouth College Library Research Guides

Patent Searching: Home

Search Strategy for U.S. Patents

1. Brainstorm keywords related to the purpose, use and composition of the invention.

2. Use Ei Patents to search your keywords; gather preliminary U.S. Classifications by reviewing the abstracts and classification definitions from the Ei Patents’ records; examine the claims and drawings from the full-text of patents; examine patents under the links, “Patent Refs” and “Cited by”, for relevancy.

3. Use the U.S. Classifications you gathered to search Ei Patents by classification number. Review the abstracts, claims and drawings for relevancy. Check all references and note the U.S. Classifications and “Field of Search” areas for additional class/subclasses to search.

see also:

Seven Step Strategy (USPTO)

How to Conduct a Preliminary U.S. Patent Search (USPTO, Video)

Prior Art Searching

Prior art searching includes more than searching patent databases, but requires checking the journal literature, dissertations, conference papers, eprints, the Web and advertising sources for any previous description of the invention. Examples include Summon for a published literature search and ThomasNet for product advertising.

see also:

Prior Art Electronic Resources Available to Patent Examiners (USPTO)



Search the literature & web

Useful Articles and books

Engineering Librarians

Emily Boyd, Janifer Holt
Feldberg Library
6193 Murdough Center
Hanover, NH 03755-3560
Fax: 603-646-2384

Holt: Office 101D
Holt: 603-646-3066

Boyd: Office 101F
Boyd: 646-9392
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