Inventor · disambiguated record
David M. Preston
Also filed as: PRESTON DAVID · PRESTON DAVID M
59 granted patents·5 pending applications·1,823 citations·filing 1983–2019
99Inventor score
Top patents by PatentIndex Score
64 records- 0198US5485904AClutch ball ramp actuator with drive and coast applyEATON CORP·Filed 1994·Granted Jan 23, 1996·102 cites·12 claims
- 0298US5441137AClutch with a centrifugally applied ball ramp actuatorEATON CORP·Filed 1994·Granted Aug 15, 1995·104 cites·16 claims
- 0397US5623897AEngine valve control system using a latchable rocker arm activated by a solenoid mechanismEATON CORP·Filed 1996·Granted Apr 29, 1997·77 cites·7 claims
- 0495US4595349ASupercharger rotor, shaft, and gear arrangementEATON CORP·Filed 1983·Granted Jun 17, 1986·77 cites·22 claims
- 0594US6354265B1Electro-mechanical latching rocker arm engine brakeEATON CORP·Filed 2000·Granted Mar 12, 2002·60 cites·12 claims
- 0694US5911643ADifferential gear mechanism and improved ball-ramp actuation thereofEATON CORP·Filed 1998·Granted Jun 15, 1999·68 cites·12 claims
- 0793US5810141ADriveline clutch with unidirectional apply ball rampEATON CORP·Filed 1996·Granted Sep 22, 1998·57 cites·11 claims
- 0893US5660153AValve control systemEATON CORP·Filed 1995·Granted Aug 26, 1997·81 cites·9 claims
- 0993US5651437AClutch ball ramp actuator to maintain state upon loss of powerEATON CORP·Filed 1996·Granted Jul 29, 1997·58 cites·14 claims
- 1093US5619958AEngine valve control system using a latchable rocker armEATON CORP·Filed 1996·Granted Apr 15, 1997·63 cites·9 claims
- 1192US5469948AClutch ball ramp actuator with coast lockEATON CORP·Filed 1994·Granted Nov 28, 1995·50 cites·13 claims
- 1291US5839545ABrake wear sensor system with mounting clipFiled 1997·Granted Nov 24, 1998·50 cites·14 claims
- 1391US5682848AEngine valve control system using a latchable rocker arm activated by a solenoid mechanismEATON CORP·Filed 1996·Granted Nov 4, 1997·46 cites·8 claims
- 1491US5309176AAirline ticket printer with stepper motor for selectively engaging print head and platenSCI SYSTEMS INC·Filed 1992·Granted May 3, 1994·85 cites·12 claims
- 1591US4724879ACentral tire inflation systemEATON CORP·Filed 1984·Granted Feb 16, 1988·47 cites·5 claims
- 1690US6666315B2Ball ramp clutch with indexing platesEATON CORP·Filed 2002·Granted Dec 23, 2003·27 cites·30 claims
- 1790US6092497AElectromechanical latching rocker arm valve deactivatorEATON CORP·Filed 1999·Granted Jul 25, 2000·57 cites·12 claims
- 1890US5819883ADriveline retarder with ball ramp loaded friction platesEATON CORP·Filed 1997·Granted Oct 13, 1998·46 cites·8 claims
- 1984US6945893B2Hybrid powertrain systemEATON CORP·Filed 2002·Granted Sep 20, 2005·53 cites·39 claims
- 2084US5690066AEngine valve control actuator with knee action linkageEATON CORP·Filed 1996·Granted Nov 25, 1997·39 cites·15 claims
- 2180US5960916ABall ramp driveline clutch actuator with biasing elementEATON CORP·Filed 1997·Granted Oct 5, 1999·30 cites·10 claims
- 2280US5910061ABall ramp driveline clutch actuator with unidirectional applyEATON CORP·Filed 1997·Granted Jun 8, 1999·30 cites·8 claims
- 2380US5802915ATransmission shifting mechanism with ball ramp actuatorEATON CORP·Filed 1996·Granted Sep 8, 1998·31 cites·8 claims
- 2480US5152360AThrottle cable intervention deviceEATON CORP·Filed 1989·Granted Oct 6, 1992·23 cites·4 claims
- 2578US6561332B2Ball ramp clutch with frictional dampingEATON CORP·Filed 2001·Granted May 13, 2003·14 cites·35 claims
- 2677US6082504AFriction brake device utilizing dual ball ramp devicesEATON CORP·Filed 1998·Granted Jul 4, 2000·27 cites·14 claims
- 2776USRE36502EClutch ball ramp actuator with drive and coast applyEATON CORP·Filed 1997·Granted Jan 18, 2000·23 cites·12 claims
- 2875US5435201ATransmission shift mechanism with ball ramp actuated gear clutch packsEATON CORP·Filed 1994·Granted Jul 25, 1995·26 cites·25 claims
- 2974US6637569B1Ball ramp actuator with indexing platesEATON CORP·Filed 2002·Granted Oct 28, 2003·12 cites·14 claims
- 3073US5713446ALow inertia ball ramp actuatorEATON CORP·Filed 1996·Granted Feb 3, 1998·24 cites·16 claims
- 3169US7452305B2Driveline torque reducerEATON CORP·Filed 2005·Granted Nov 18, 2008·5 cites·29 claims
- 3269US6694934B1Variable valve actuator for internal combustion engineEATON CORP·Filed 2002·Granted Feb 24, 2004·11 cites·8 claims
- 3369US4940109ASplit arm throttle cable intervention deviceEATON CORP·Filed 1989·Granted Jul 10, 1990·16 cites·22 claims
- 3468US6675943B2Lubrication system for ball ramp clutch systemsEATON CORP·Filed 2002·Granted Jan 13, 2004·8 cites·3 claims
- 3567US5964330ABall ramp driveline clutch actuator with self aligning cone clutchEATON CORP·Filed 1997·Granted Oct 12, 1999·19 cites·3 claims
- 3666US6641111B2Dislodging a throttle plate from ice formationEATON CORP·Filed 2002·Granted Nov 4, 2003·14 cites·10 claims
- 3765US5934415ABrake actuator service limit sensorDANA CORP·Filed 1997·Granted Aug 10, 1999·18 cites·8 claims
- 3864US5599117AAirline ticket printer with ticket prestagingSCI SYSTEMS INC·Filed 1994·Granted Feb 4, 1997·13 cites·5 claims
- 3963US5947857ABall ramp driveline clutch actuator with unidirectional apply using planetary gearsetEATON CORP·Filed 1997·Granted Sep 7, 1999·17 cites·8 claims
- 4061US5953959ATransmission inertia brake with ball ramp actuationEATON CORP·Filed 1998·Granted Sep 21, 1999·17 cites·16 claims
- 4160US5684285AAirline ticket printer with ticket pre-staging and recirculationSCI SYSTEMS INC·Filed 1995·Granted Nov 4, 1997·17 cites·2 claims
- 4258US2008167281A1Combination Otic FormulationPRESTON DAVID M·Filed 2007·Application pending·0 cites
- 4358US2006079514A1Methods and compositions including methscopolamine bromideVICTORY PHARMA INC·Filed 2004·Application pending·0 cites
- 4457US2006079513A1Methods and compositions including methscopolamine nitratePRESTON DAVID M·Filed 2004·Application pending·0 cites
- 4553US6042285ADevice for removing ticket blanks from ticket cassetteSCI SYSTEMS INC·Filed 1997·Granted Mar 28, 2000·12 cites·8 claims
- 4653US5029893AVehicle suspension with auxiliary leaf springsEATON CORP·Filed 1989·Granted Jul 9, 1991·20 cites·10 claims
- 4750US5024463AManually power mechanical actuator for parallel auxiliary springEATON CORP·Filed 1989·Granted Jun 18, 1991·18 cites·25 claims
- 4850US2006018837A1Pharmaceutical compositions and methods for the prevention of drug misuseVICTORY PHARMA INC·Filed 2004·Application pending·0 cites
- 4949US10942000B2Gun stability plate assemblyPRESTON DAVID·Filed 2019·Granted Mar 9, 2021·1 cites·18 claims
- 5049US5664073AControl system for transportation ticket printer having plurality of dual process personal computer boards for performing general computing tasks and sending data to printer control moduleSCI SYSTEMS INC·Filed 1995·Granted Sep 2, 1997·10 cites·3 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →