Inventor · Durham, NC, US

David R. Smith

25Patents
12h-index
54Co-inventors
84Inventor score

Filing activity: May 23, 1974 → May 23, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US5682100A System and method for locating faults in electric power cables Physics 92 Expired
US7222309B2 System and method of a web browser with integrated features and controls Physics 61 Expired
US5697394A Low observable engine air inlet system Emerging Cross-Sectional Technologies 48 Expired
US6691249B1 Probabilistic diagnosis, in particular for embedded and remote applications Physics 29 Expired
US5194786A Linear current source amplifier for brushless DC motor Electricity 29 Expired
US3947728A Network protector relay Electricity 27 Expired
US7457678B2 Method for managing ergonomic risk exposure in manufacturing Physics 24 Active
US4889439A Automatic page end feature for an electronic typewriter Emerging Cross-Sectional Technologies 22 Expired
US7889127B2 Wide angle impedance matching using metamaterials in a phased array antenna system Electricity 15 Active
US6675325B1 Method and apparatus for fault analysis in a communication network Electricity 13 Expired
US4293886A Network protector relay Electricity 12 Expired
US5577178A Neural network for color translations Electricity 12 Expired
US4957380A Tab adjust function for an electronic typewriter to permit the shifting of tabs from a first to a second format Physics 11 Expired
US4948703A Ultraviolet light curable composition and use thereof Physics 8 Expired
US6993193B2 Method and system of object classification employing dimension reduction Physics 7 Expired
US6671151B2 Network protector relay and method of controlling a circuit breaker employing two trip characteristics Electricity 6 Expired
US8493281B2 Lens for scanning angle enhancement of phased array antennas Electricity 6 Active
US4799811A Automatic relocate on continuation of document playout Physics 3 Expired
US10452797B2 Fault insertion for system verification Physics 3 Active
US4894798A Automatic stop code insertion feature for a word processing apparatus Physics 2 Expired
US10096991B2 Network protector control for spot network fed from feeder sources having voltage differences Electricity 2 Active
US8659502B2 Lens for scanning angle enhancement of phased array antennas Electricity 2 Active
US8977396B2 Mobile robotic assistant for multipurpose applications Electricity 0 Active
USD1064864S1 Navigation device General 0 Active
US8260659B1 Workload management for printing and inserting mail Physics 0 Active

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