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USPTO Web Patent DatabaseFor patents from 1976 to the present it provides searching by classification system, title and abstract words, inventor and company name and many other fields. For patents prior to 1976 you must search by patent number or the classification system. There is no searching by inventor or title for the older patents.
Coverage: From 1790
Locations: UM, UMA, UMF, UMFK, UMM, UMPI, USM, BPL, LAW, MSL, LEG
Format: Internet
Remote Access: Available