Inventor · Penn Hills, PA, US

Eric J. Stacey

37Patents
15h-index
14Co-inventors
78Inventor score

Filing activity: Sep 25, 1974 → Aug 14, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US4651265A Active power conditioner system Emerging Cross-Sectional Technologies 82 Expired
US4991429A Torque angle and peak current detector for synchronous motors Physics 80 Expired
US5515264A Optimized high power voltage sourced inverter system Electricity 63 Expired
US5113125A AC drive with optimized torque Electricity 38 Expired
US5140245A PMG-based position sensor and synchronous drive incorporating same Electricity 36 Expired
US4870557A Simplified quasi-harmonic neutralized high power inverters Electricity 31 Expired
US4047097A Apparatus and method for transient free energization and deenergization of static VAR generators Emerging Cross-Sectional Technologies 24 Expired
US4698740A Current fed regulated voltage supply Electricity 22 Expired
US5337227A Harmonic neutralization of static inverters by successive stagger Electricity 21 Expired
US4669024A Multiphase frequency selective phase locked loop with multiphase sinusoidal and digital outputs Electricity 21 Expired
US4935686A Ac motor drive with switched autotransformer coupling Electricity 19 Expired
US5703767A Apparatus and method to prevent saturation of interphase transformers Electricity 19 Expired
US5168437A Phase displaced, multiple inverter bridge circuits with waveform notching for harmonic elimination Electricity 19 Expired
US4439823A Converting multiphase power from one frequency to another using current waveforms Electricity 16 Expired
US4766359A Absolute shaft position sensing circuit Physics 16 Expired
US4597038A Switching overlap protection by control gate impedance monitoring Electricity 14 Expired
US4963839A Wide bandwidth phase locked loop circuit with sliding window averager Electricity 13 Expired
US5798916A High power inverter pole employing series connected devices configured for reduced stray loop inductance Electricity 12 Expired
US3989996A Force commutation static frequency changer apparatus using direct capacitor commutation Electricity 9 Expired
US3931563A Force commutation static frequency changer apparatus using direct current chopper technique Electricity 9 Expired
US4479160A Band-pass sequence filters for symmetrical components of multiphase AC power systems Physics 7 Expired
US4203040A Force commutated static isolator circuit Electricity 7 Expired
US4001670A Static reactive power generating apparatus Electricity 6 Expired
US4398141A Static VAR generators Emerging Cross-Sectional Technologies 6 Expired
US4307444A Method and apparatus for stabilized integral control of static power frequency changers Electricity 5 Expired

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