Inventor · disambiguated record
Errol E. Wallingford
Also filed as: WALLINGFORD ERROL · WALLINGFORD ERROL E
5 granted patents·116 citations·filing 1987–2002
82Inventor score
Top patents by PatentIndex Score
5 records- 0180US5383366AUltrasonic two probe system for locating and sizingUS ARMY·Filed 1992·Granted Jan 24, 1995·57 cites·14 claims
- 0271US4849871AThree-phase PWM inverter with speed control and load compensation for an induction motorWALLINGFORD ERROL E·Filed 1987·Granted Jul 18, 1989·36 cites·19 claims
- 0347US6339301B1AC motor control for a vehicle having a multi-speed transmission—IIFiled 2000·Granted Jan 15, 2002·10 cites·9 claims
- 0439US6642688B1Throttle and AC motor control throughout shifts of multi-speed transmissionsFiled 2002·Granted Nov 4, 2003·4 cites·7 claims
- 0538US6082195AVehicle wheel speed sensorFiled 1999·Granted Jul 4, 2000·9 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →