Inventor · Vandergrift, PA, US

Thomas H. Putman

14Patents
8h-index
11Co-inventors
65Inventor score

Filing activity: Jan 28, 1974 → Apr 28, 1992

Most-cited inventions

PatentTitleAreaCited byStatus
US5126641A Bidirectional variable reluctance actuator and system for active attenuation of vibration and structure borne noise utilizing same Mechanical Engineering; Lighting; Heating 45 Expired
US5347586A Adaptive system for controlling noise generated by or emanating from a primary noise source Physics 36 Expired
US4513240A Method and apparatus for selective cancellation of subsynchronous resonance Emerging Cross-Sectional Technologies 30 Expired
US4311253A Low loss stabilizer Electricity 20 Expired
US4302715A Dynamic parallel inductive stabilizer for synchronous machines having torsional oscillations Electricity 18 Expired
US3973410A Disc-type automatic expansion valve for refrigerant Emerging Cross-Sectional Technologies 14 Expired
US4356441A Voltage regulator utilizing a static VAR generator with half period averaging and saturating type firing angle control Emerging Cross-Sectional Technologies 11 Expired
US4172234A Static VAR generator compensating control circuit and method for using same Emerging Cross-Sectional Technologies 11 Expired
US4156176A Voltage regulator utilizing a static var generator Emerging Cross-Sectional Technologies 7 Expired
US5243512A Method and apparatus for minimizing vibration Physics 6 Expired
US3952535A Automatic expansion valve for refrigerant Mechanical Engineering; Lighting; Heating 5 Expired
US4477792A Modular power system reactor Electricity 4 Expired
US5047915A Unrestricted frequency converter for unbalanced loads Electricity 4 Expired
US3938538A Control valve apparatus Emerging Cross-Sectional Technologies 2 Expired

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