Inventor · disambiguated record
Roy I. Davis
Also filed as: DAVIS ROY I · DAVIS ROY INGE
12 granted patents·1 pending application·835 citations·filing 1987–2005
94Inventor score
Files withFORD MOTOR CO5BALLARD POWER SYSTEMS3FORD GLOBAL TECH INC2CONTINENTAL AUTOMOTIVE SYSTEMS1DAVIS ROY I1
Top patents by PatentIndex Score
13 records- 0198US5060959AElectrically powered active suspension for a vehicleFORD MOTOR CO·Filed 1990·Granted Oct 29, 1991·363 cites·40 claims
- 0296US4962969AAdaptive controller for regenerative and friction braking systemFORD MOTOR CO·Filed 1988·Granted Oct 16, 1990·128 cites·19 claims
- 0394US6714852B1Observer for engine crankshaft torqueFORD GLOBAL TECH LLC·Filed 2000·Granted Mar 30, 2004·54 cites·6 claims
- 0491US6336070B1Apparatus and method for engine crankshaft torque ripple control in a hybrid electric vehicleFORD GLOBAL TECH INC·Filed 2000·Granted Jan 1, 2002·60 cites·7 claims
- 0585US7557530B2Method, apparatus and article for detecting rotor positionCONTINENTAL AUTOMOTIVE SYSTEMS·Filed 2005·Granted Jul 7, 2009·17 cites·34 claims
- 0685US6936991B2Method and apparatus for motor controlBALLARD POWER SYSTEMS·Filed 2003·Granted Aug 30, 2005·41 cites·30 claims
- 0784US7098569B2Rotor assembly for a permanent magnet power electric machineBALLARD POWER SYSTEMS·Filed 2004·Granted Aug 29, 2006·31 cites·17 claims
- 0884US4855914AComputer controlled synchronous shifting of an automatic transmissionDAVIS ROY I·Filed 1987·Granted Aug 8, 1989·41 cites·22 claims
- 0973US5441298AApparatus for stabilizing an electric active suspension system upon interruption of the power supplyFORD MOTOR CO·Filed 1993·Granted Aug 15, 1995·37 cites·15 claims
- 1064US6192847B1Method and apparatus for selectively controlling the speed of an engineFORD GLOBAL TECH INC·Filed 1999·Granted Feb 27, 2001·31 cites·17 claims
- 1161US5254926ACurrent-mode hysteresis control for controlling a motorFORD MOTOR CO·Filed 1992·Granted Oct 19, 1993·21 cites·11 claims
- 1237US5258904ADither control method of PWM inverter to improve low level motor torque controlFORD MOTOR CO·Filed 1992·Granted Nov 2, 1993·11 cites·10 claims
- 1334US2004015255A1Process for the optimization of the design of an electric power trainBALLARD POWER SYSTEMS·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →