Inventor · Waterloo, ON, CA

David Ryan Walker

74Patents
13h-index
35Co-inventors
80Inventor score

Filing activity: Aug 30, 2007 → Dec 21, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US9361018B2 Method of providing tactile feedback and apparatus Physics 153 Active
US8392259B2 Methods and apparatus to obtain transaction confirmation Physics 143 Active
US8669844B2 Radio frequency identification (RFID) system providing meeting room reservation and scheduling features and related methods Physics 55 Active
US8869263B2 Wireless communications system providing mobile device authentication bypass based upon user-wearable security device and related methods Electricity 44 Active
US8532675B1 Mobile communication device user interface for manipulation of data items in a physical space Electricity 36 Active
US8405528B2 Gesture based smart headphone Electricity 33 Active
US8457692B2 Method and system for preventing device operation when driving Electricity 26 Active
US9535500B2 Method of providing tactile feedback and apparatus Physics 26 Active
US8023256B2 Portable folding electronic device Physics 24 Active
US8849806B2 Method, system and apparatus for efficiently determining priority of data in a database Emerging Cross-Sectional Technologies 14 Active
US9310889B2 Touchscreen keyboard predictive display and generation of a set of characters Physics 14 Active
US8290549B2 Mobile communication device having rotatable member Electricity 13 Active
US8689297B2 System, devices and method for secure authentication Electricity 13 Active
US8822851B2 Method and apparatus for controlling a multi-mode keyboard Electricity 12 Active
US10223743B2 Communication system providing near field communication (NFC) transaction features and related methods Electricity 11 Active
US9569002B2 Portable electronic device having a sensor arrangement for gesture recognition Physics 9 Active
US9264245B2 Methods and devices for facilitating presentation feedback Physics 9 Active
US8451240B2 Electronic device and method of providing tactile feedback Physics 9 Active
US8670709B2 Near-field communication (NFC) system providing mobile wireless communications device operations based upon timing and sequence of NFC sensor communication and related methods Electricity 7 Active
US8774713B2 Mobile wireless communications device establishing wireless communication links based upon near field communication and related methods Electricity 6 Active
US8995948B2 Emergency call forward based on location Electricity 6 Active
US8756052B2 Methods and systems for a locally and temporally adaptive text prediction Physics 4 Active
US8989767B2 Wireless communication system with NFC-controlled access and related methods Electricity 4 Active
US9106275B2 Accelerometer tap detection to initiate NFC communication Electricity 4 Active
US9715489B2 Displaying a prediction candidate after a typing mistake Physics 4 Active

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