Inventor · disambiguated record
Howard F. Hendricks
Also filed as: HENDRICKS HOWARD · HENDRICKS HOWARD F
10 granted patents·220 citations·filing 1978–2019
90Inventor score
Files withPENN ENG & MFG CORP4MICROCHIP TECH INC3ELECTRIC INDICATOR COMPANY INC1HOPKINS THOMAS H1TRANSICOIL INC1
Top patents by PatentIndex Score
10 records- 0192US10135369B2Linear hall effect sensors for multi-phase permanent magnet motors with PWM driveMICROCHIP TECH INC·Filed 2016·Granted Nov 20, 2018·5 cites·17 claims
- 0290US8310126B1Radial flux permanent magnet AC motor/generatorHOPKINS THOMAS H·Filed 2011·Granted Nov 13, 2012·41 cites·56 claims
- 0387USD287715SDirect current electric motorsPENN ENG & MFG CORP·Filed 1983·Granted Jan 13, 1987·36 cites·1 claims
- 0486US4556811ACoil unit and coil form for electrical machinesELECTRIC INDICATOR COMPANY INC·Filed 1984·Granted Dec 3, 1985·55 cites·13 claims
- 0571US4758768A12-step commutation device for an electric motorPENN ENG & MFG CORP·Filed 1987·Granted Jul 19, 1988·32 cites·10 claims
- 0664US11018606B2Linear hall effect sensors for multi-phase permanent magnet motors with PWM driveMICROCHIP TECH INC·Filed 2019·Granted May 25, 2021·0 cites·15 claims
- 0756US5075605AInner-rotor commutation devicePENN ENG & MFG CORP·Filed 1990·Granted Dec 24, 1991·27 cites·5 claims
- 0853US4227101AStepper motor and adaptor ringTRANSICOIL INC·Filed 1978·Granted Oct 7, 1980·14 cites·7 claims
- 0949US9071172B2Sine modified trapezoidal drive for brushless DC motorsMICROCHIP TECH INC·Filed 2013·Granted Jun 30, 2015·0 cites·19 claims
- 1043US5012167ASinusoidal signal decoder for 12-step motor commutationPENN ENG & MFG CORP·Filed 1990·Granted Apr 30, 1991·10 cites·6 claims
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