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Find results with all of the words 10 results20 results30 results50 results100 results with the exact phrase with at least one of the words without the words Patent number Return patents with the patent number Title Return patents with the patent title Inventor Return patents with the inventor name First name, last name, or both Assignee Return patents with the assignee name First name, last name, or both U.S. Classification Return patents with the U.S. classification Comma separated list of one or more classification codes. International Classification Return patents with the international classification Comma separated list of one or more classification codes. Document status Issued patents   Applications    Patent type Patent type All typesUtilityDesign (D)Plant (PP)Defensive publication (T)Statutory invention registration (H)Reissue design (RD)Reissue utility (RE)X patents (X)X patent reissue (RX)Additional improvements (AI) Issue date Return patents issued anytime Return patents issued between JanFebMarAprMayJunJulAugSepOctNovDec and JanFebMarAprMayJunJulAugSepOctNovDec e.g. 1999 and 2000, or Jan 1999 and Dec 2000 Filing date Return patents filed anytime Return patents filed between JanFebMarAprMayJunJulAugSepOctNovDec and JanFebMarAprMayJunJulAugSepOctNovDec e.g. 1999 and 2000, or Jan 1999 and Dec 2000

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