Inventor · disambiguated record
Frank E. Wills
Also filed as: WILLS FRANK E · WILLS FRANK EUGENE
22 granted patents·1,059 citations·filing 1975–2004
97Inventor score
Top patents by PatentIndex Score
22 records- 0198US4146085ADiagnostic system for heat pumpBORG WARNER·Filed 1977·Granted Mar 27, 1979·137 cites·15 claims
- 0295US5218283AAC motor drive system with a two phase power supplyYORK INT CORP·Filed 1992·Granted Jun 8, 1993·100 cites·26 claims
- 0394US7096681B2System and method for variable speed operation of a screw compressorYORK INT CORP·Filed 2004·Granted Aug 29, 2006·61 cites·35 claims
- 0494US6121749AVariable-speed drive for single-phase motorsWORK SMART ENERGY ENTPR INC·Filed 1999·Granted Sep 19, 2000·93 cites·9 claims
- 0594US5252905ADriving system for single phase A-C induction motorYORK INT CORP·Filed 1987·Granted Oct 12, 1993·87 cites·13 claims
- 0694US4706180APulse width modulated inverter system for driving single phase a-c induction motorYORK INT CORP·Filed 1985·Granted Nov 10, 1987·76 cites·12 claims
- 0790US4425539AControl system for AC induction motorBORG WARNER·Filed 1982·Granted Jan 10, 1984·47 cites·2 claims
- 0885US5460009ARefrigeration system and methodYORK INT CORP·Filed 1994·Granted Oct 24, 1995·61 cites·16 claims
- 0984US5555736ARefrigeration system and methodYORK INT CORP·Filed 1995·Granted Sep 17, 1996·47 cites·12 claims
- 1084US4078393AControl system for controlling the operation of a three-phase loadBORG WARNER·Filed 1976·Granted Mar 14, 1978·27 cites·14 claims
- 1181US5136216AAc motor drive systemYORK INT CORP·Filed 1991·Granted Aug 4, 1992·47 cites·34 claims
- 1281US4651079APulse width modulated inverter system for driving single phase a-c induction motor at a constant voltage/frequency ratioWILLS FRANK E·Filed 1985·Granted Mar 17, 1987·42 cites·6 claims
- 1379US5146147AAc motor drive systemYORK INT CORP·Filed 1991·Granted Sep 8, 1992·43 cites·25 claims
- 1478US5898554ASwitch driver circuitYORK INT CORP·Filed 1997·Granted Apr 27, 1999·36 cites·15 claims
- 1576US4102389AHeat pump control systemBORG WARNER·Filed 1976·Granted Jul 25, 1978·34 cites·8 claims
- 1675US4499534AControl system for controlling an SCR network to regulate three-phase A-C power flowBORG WARNER·Filed 1982·Granted Feb 12, 1985·24 cites·8 claims
- 1772US4075865AApparatus for controlling condenser pressure in a refrigeration systemBORG WARNER·Filed 1975·Granted Feb 28, 1978·30 cites·1 claims
- 1864US7075268B2System and method for increasing output horsepower and efficiency in a motorYORK INT CORP·Filed 2004·Granted Jul 11, 2006·13 cites·23 claims
- 1960US5838144ASolid state, reduced voltage motor starter enabling equalized input/output volt-amp ratingsYORK INT CORP·Filed 1997·Granted Nov 17, 1998·21 cites·16 claims
- 2052US5075838AEnergy efficient voltage snubber circuitYORK INT CORP·Filed 1990·Granted Dec 24, 1991·20 cites·34 claims
- 2142US4864487AControl for three terminal power semiconductor devicesYORK INT CORP·Filed 1988·Granted Sep 5, 1989·8 cites·32 claims
- 2242US4146920APre-charge circuit for aux-comm inverterBORG WARNER·Filed 1977·Granted Mar 27, 1979·5 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →