Inventor · Snohomish, WA, US

Keith C. Hullfish

26Patents
12h-index
19Co-inventors
74Inventor score

Filing activity: Jun 20, 2002 → Jul 31, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US7881936B2 Multimodal disambiguation of speech recognition Physics 550 Active
US8095364B2 Multimodal disambiguation of speech recognition Physics 450 Active
US7712053B2 Explicit character filtering of ambiguous text entry Physics 364 Expired
US7428580B2 Electronic message forwarding Electricity 135 Expired
US7590696B1 Enhanced buddy list using mobile device identifiers Electricity 128 Expired
US7286115B2 Directional input system with automatic correction Physics 60 Expired
US8156193B1 Enhanced buddy list using mobile device identifiers Electricity 48 Active
US7778818B2 Directional input system with automatic correction Physics 44 Active
US8965964B1 Managing forwarded electronic messages Electricity 29 Active
US9319356B2 Message delivery control settings Electricity 21 Active
US8381137B2 Explicit character filtering of ambiguous text entry Physics 13 Active
US9557916B2 Keyboard system with automatic correction Physics 12 Active
US8294667B2 Directional input system with automatic correction Physics 8 Active
US10389661B2 Managing electronic messages sent to mobile devices associated with electronic messaging accounts Electricity 7 Active
US9786273B2 Multimodal disambiguation of speech recognition Physics 6 Active
US8606582B2 Multimodal disambiguation of speech recognition Physics 4 Active
US8311829B2 Multimodal disambiguation of speech recognition Physics 4 Active
US10187334B2 User-defined electronic message preferences Electricity 3 Active
US8576167B2 Directional input system with automatic correction Physics 2 Active
US8976115B2 Directional input system with automatic correction Physics 2 Active
US9356890B2 Enhanced buddy list using mobile device identifiers Electricity 2 Active
US8990738B2 Explicit character filtering of ambiguous text entry Physics 1 Active
US9894018B2 Electronic messaging using reply telephone numbers Electricity 1 Active
US8972905B2 Explicit character filtering of ambiguous text entry Physics 1 Active
US10033669B2 Managing electronic messages sent to reply telephone numbers Electricity 1 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.