Inventor · Colorado Springs, CO, US

David L. Brown

72Patents
30h-index
22Co-inventors
88Inventor score

Filing activity: Sep 20, 1974 → Sep 6, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8219129B2 Dynamic real-time tiered client access Emerging Cross-Sectional Technologies 122 Active
US8036152B2 Integrated power management of a client device via system time slot assignment Emerging Cross-Sectional Technologies 83 Active
US7904718B2 Personal digital key differentiation for secure transactions Electricity 79 Active
US5588728A Portable disk drive carrier and chassis Physics 71 Expired
US9269221B2 Configuration of interfaces for a location detection system and application Physics 67 Active
US8433919B2 Two-level authentication for secure transactions Electricity 58 Active
US8171528B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 53 Active
US8340672B2 Wireless network synchronization of cells and client devices on a network Emerging Cross-Sectional Technologies 49 Active
USD410026S Solid ink stick for a color printer General 49 Expired
US9037140B1 Wireless network synchronization of cells and client devices on a network Emerging Cross-Sectional Technologies 46 Active
US9542542B2 Single step transaction authentication using proximity and biometric input Electricity 45 Active
US6011755A Electronic time switches Physics 44 Expired
US8659427B2 Proximity-sensor supporting multiple application services Physics 41 Active
USD403699S Solid ink stick for a color printer General 41 Expired
US8646042B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 39 Active
US9049188B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 39 Active
US9235700B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 39 Active
US9679289B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 37 Active
US10073960B1 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Physics 37 Active
US7883003B2 Tracking system using personal digital key groups Physics 36 Active
US8412949B2 Personal digital key initialization and registration for secure transactions Electricity 35 Active
US10455533B2 Wireless network synchronization of cells and client devices on a network Emerging Cross-Sectional Technologies 34 Active
USD402308S Solid ink stick for a color printer General 34 Expired
USD403352S Solid ink stick for a color printer General 32 Expired
USD403351S Solid ink stick for a color printer General 32 Expired

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