Inventor · disambiguated record
David B. Clifton
Also filed as: CLIFTON DAVID B
18 granted patents·643 citations·filing 1991–2001
96Inventor score
Top patents by PatentIndex Score
18 records- 0197US5731645AIntegrated motor/generator/flywheel utilizing a solid steel rotorMAGNETIC BEARING TECH·Filed 1996·Granted Mar 24, 1998·93 cites·30 claims
- 0293US6512305B1Method and apparatus having a turbine working in different modes for providing an uninterruptible supply of electric power to a critical loadACTIVE POWER INC·Filed 2000·Granted Jan 28, 2003·55 cites·73 claims
- 0391US5932935AEnergy storage flywheel emergency power source and methodsACTIVE POWER INC·Filed 1997·Granted Aug 3, 1999·34 cites·27 claims
- 0491US5905321AEnergy storage flywheel apparatus and methodsACTIVE POWER INC·Filed 1998·Granted May 18, 1999·34 cites·24 claims
- 0583US6463738B1Method and apparatus for providing a continuous supply of electric powerACTIVE POWER INC·Filed 2001·Granted Oct 15, 2002·82 cites·47 claims
- 0683US6192687B1Uninterruptible power supply utilizing thermal energy sourceACTIVE POWER INC·Filed 1999·Granted Feb 27, 2001·98 cites·49 claims
- 0774US5471105ANull flux magnetic bearing with cross-connected loop portionsMAGNETIC BEARING TECH·Filed 1994·Granted Nov 28, 1995·29 cites·10 claims
- 0873US5969457AEnergy storage flywheel apparatus and methodsACTIVE POWER INC·Filed 1998·Granted Oct 19, 1999·22 cites·25 claims
- 0971US6255743B1Method and apparatus for providing an uninterruptible supply of electric power to a critical loadACTIVE POWER INC·Filed 1999·Granted Jul 3, 2001·60 cites·50 claims
- 1067US5920138AMotor/generator and axial magnetic bearing utilizing common magnetic circuitACTIVE POWER INC·Filed 1998·Granted Jul 6, 1999·18 cites·35 claims
- 1164US5980193AMagnetically levitated robot and method of increasing levitation forceMAGNETIC BEARING TECH·Filed 1996·Granted Nov 9, 1999·30 cites·15 claims
- 1257US5955816AEnergy storage flywheel apparatus and methodsACTIVE POWER INC·Filed 1998·Granted Sep 21, 1999·9 cites·16 claims
- 1356US5929548AHigh inertia inductor-alternatorACTIVE POWER INC·Filed 1997·Granted Jul 27, 1999·20 cites·28 claims
- 1456US5525848AMagnetic bearing system including a generatorMAGNETIC BEARING TECH·Filed 1994·Granted Jun 11, 1996·22 cites·30 claims
- 1552US6124702AStep switch cycloconverter utilizing multi-tap armatureACTIVE POWER INC·Filed 1998·Granted Sep 26, 2000·18 cites·51 claims
- 1643US6777823B1Integrated continuous power system assemblies having multiple nozzle block segmentsACTIVE POWER INC·Filed 2001·Granted Aug 17, 2004·3 cites·8 claims
- 1742US5345128AMagnetic bearing with closed loops which move in AC electromagnet field and/or which include capacitorsMAGNETIC BEARING TECHOLOGIES I·Filed 1993·Granted Sep 6, 1994·14 cites·41 claims
- 1826US5208844AElectronic devices using discrete, contained charged particle bundles and sources of sameJUPITER TOY CO·Filed 1991·Granted May 4, 1993·2 cites·59 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →