Inventor · Grand Rapids, MI, US

Richard H. Baker

50Patents
20h-index
21Co-inventors
88Inventor score

Filing activity: May 25, 1973 → Nov 10, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US4375662A Method of and apparatus for enabling output power of solar panel to be maximized Emerging Cross-Sectional Technologies 273 Expired
US6286441A Height adjustable work surface and control therefor Human Necessities 108 Expired
US4367421A Biasing methods and circuits for series connected transistor switches Electricity 72 Expired
US4523269A Series resonance charge transfer regulation method and apparatus Electricity 54 Expired
US5183319A Adjustable support for overhead furniture units Human Necessities 46 Expired
US4270163A Bridge converter circuit Electricity 40 Expired
US4203151A High-voltage converter circuit Electricity 38 Expired
US6984897B2 Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls Electricity 38 Expired
US4536699A Field effect regulator with stable feedback loop Physics 38 Expired
US4366522A Self-snubbing bipolar/field effect (biofet) switching circuits and method Electricity 38 Expired
US6469469B1 Variable output induction motor drive system Electricity 31 Expired
US4333136A Solar powered automatic turn-on control (SPA-TOC) unit and method Emerging Cross-Sectional Technologies 31 Expired
US4329705A VMOS/Bipolar power switching device Electricity 29 Expired
US4261540A Height adjustable chair base Human Necessities 27 Expired
US4117364A Voltage waveform synthesizer and a system that includes the same Electricity 27 Expired
US6954004B2 Doubly fed induction machine Electricity 26 Expired
US4039909A Variable speed electronic motor and the like Electricity 24 Expired
US3942028A Multi-node electrical network Electricity 23 Expired
US3942836A Chair Emerging Cross-Sectional Technologies 21 Expired
USD264898S Chair General 21 Expired
US4680490A MOSFET AC switch Electricity 20 Expired
US4060754A Electronic motor that includes an electronic waveform synthesizer and the synthesizer per se Electricity 19 Expired
US4271460A Soft turn-on power Emerging Cross-Sectional Technologies 19 Expired
US4135235A Synthesizer circuit for generating three-tier waveforms Electricity 16 Expired
US4006459A Method and apparatus for controlling the passage of persons and objects between two areas Physics 16 Expired

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