Inventor · disambiguated record
Wally E. Rippel
Also filed as: RIPPEL WALLY E
46 granted patents·11 pending applications·2,297 citations·filing 1979–2022
98Inventor score
Top patents by PatentIndex Score
57 records- 0199US5041780AIntegrable current sensorsCALIFORNIA INST OF TECHN·Filed 1988·Granted Aug 20, 1991·327 cites·11 claims
- 0299US4384321AUnity power factor switching regulatorCALIFORNIA INST OF TECHN·Filed 1981·Granted May 17, 1983·321 cites·17 claims
- 0397US4275130ABipolar battery constructionCALIFORNIA INST OF TECHN·Filed 1979·Granted Jun 23, 1981·104 cites·31 claims
- 0496US8970075B2Liquid cooled electric motorRIPPEL WALLY E·Filed 2012·Granted Mar 3, 2015·37 cites·24 claims
- 0595US9985500B2Induction motor with transverse liquid cooled rotor and statorPRIPPELL TECH LLC·Filed 2015·Granted May 29, 2018·14 cites·36 claims
- 0694US7256516B2Battery charging system and methodAEROVIRONMENT INC·Filed 2003·Granted Aug 14, 2007·280 cites·30 claims
- 0794US6954010B2Lamination cooling systemAEROVIRONMENT INC·Filed 2003·Granted Oct 11, 2005·66 cites·19 claims
- 0893US8415904B2Open delta motor drive with integrated rechargeRIPPEL WALLY E·Filed 2010·Granted Apr 9, 2013·12 cites·26 claims
- 0993US7851966B2Stator for electric machine with improved efficiency and thermal performanceRIPPEL WALLY E·Filed 2008·Granted Dec 14, 2010·27 cites·10 claims
- 1093US4920475AIntegrated traction inverter and battery charger apparatusCALIFORNIA INST OF TECHN·Filed 1988·Granted Apr 24, 1990·165 cites·7 claims
- 1192US10790728B2Electric machine stator with liquid cooled teethENURE INC·Filed 2019·Granted Sep 29, 2020·4 cites·26 claims
- 1291US10411563B2Electric machine stator with liquid cooled teethPRIPPELL TECH LLC·Filed 2016·Granted Sep 10, 2019·4 cites·26 claims
- 1391US6232742B1Dc/ac inverter apparatus for three-phase and single-phase motorsAEROVIRONMENT INC·Filed 1994·Granted May 15, 2001·90 cites·5 claims
- 1490US5441824AQuasi-bipolar battery requiring no casingAEROVIRONMENT INC·Filed 1994·Granted Aug 15, 1995·66 cites·13 claims
- 1590US4603093ALead-acid batteryCALIFORNIA INST OF TECHN·Filed 1985·Granted Jul 29, 1986·76 cites·20 claims
- 1690US4353969AQuasi-bipolar battery construction and method of fabricatingCALIFORNIA INST OF TECHN·Filed 1980·Granted Oct 12, 1982·55 cites·22 claims
- 1789US10060682B2Fluid-cooled wound strip structurePRIPPELL TECH LLC·Filed 2015·Granted Aug 28, 2018·4 cites·29 claims
- 1889US9443786B1Packaging and cooling method and apparatus for power semiconductor devicesAC PROPULSION INC·Filed 2015·Granted Sep 13, 2016·10 cites·22 claims
- 1989US5099186AIntegrated motor drive and recharge systemGEN MOTORS INC·Filed 1990·Granted Mar 24, 1992·201 cites·38 claims
- 2088US8201316B2Lamination cooling system formation methodRIPPEL WALLY E·Filed 2009·Granted Jun 19, 2012·15 cites·21 claims
- 2188US4664992AComposite battery separatorCALIFORNIA INST OF TECHN·Filed 1984·Granted May 12, 1987·48 cites·14 claims
- 2287US4884631AForced air heat sink apparatusCALIFORNIA INST OF TECHN·Filed 1988·Granted Dec 5, 1989·76 cites·12 claims
- 2385US7530156B2Lamination cooling system formation methodAEROVIRONMENT INC·Filed 2005·Granted May 12, 2009·13 cites·12 claims
- 2484US5751150ABidirectional load and source cyclerAEROVIRONMENT INC·Filed 1995·Granted May 12, 1998·86 cites·24 claims
- 2583US11508509B2Liquid cooled magnetic elementENURE INC·Filed 2018·Granted Nov 22, 2022·2 cites·24 claims
- 2682US4873460AMonolithic transistor gate energy recovery systemCALIFORNIA INST OF TECHN·Filed 1988·Granted Oct 10, 1989·30 cites·3 claims
- 2780US7911308B2Low thermal impedance conduction cooled magneticsRIPPEL WALLY E·Filed 2008·Granted Mar 22, 2011·9 cites·15 claims
- 2878US11387030B2Fluid cooled magnetic elementPRIPPELL TECH LLC·Filed 2018·Granted Jul 12, 2022·1 cites·22 claims
- 2976US10600548B2Liquid cooled magnetic elementPRIPPELL TECH LLC·Filed 2017·Granted Mar 24, 2020·1 cites·22 claims
- 3076US10030777B2Dynamic fluid sealPRIPPELL TECH LLC·Filed 2017·Granted Jul 24, 2018·2 cites·20 claims
- 3174US12463548B2Polyphase AC to DC converterENURE INC·Filed 2022·Granted Nov 4, 2025·0 cites·17 claims
- 3274US2021242751A1Electric machine stator with liquid cooled teethENURE INC·Filed 2021·Application pending·0 cites
- 3373US10348114B2Portable electrical energy storage and power processing deviceWHISPER ENERGY SYSTEMS INC·Filed 2015·Granted Jul 9, 2019·3 cites·19 claims
- 3473US4319318AVoltage reapplication rate control for commutation of thyristorsCALIFORNIA INST OF TECHN·Filed 1980·Granted Mar 9, 1982·22 cites·16 claims
- 3572US4874681AWoven-grid sealed quasi-bipolar lead-acid battery construction and fabricating methodRIPPEL WALLY E·Filed 1988·Granted Oct 17, 1989·26 cites·22 claims
- 3672US4570212ASilicon controlled rectifier polyphase bridge inverter commutated with gate-turn-off thyristorCALIFORNIA INST OF TECHN·Filed 1982·Granted Feb 11, 1986·21 cites·19 claims
- 3772US2020412209A1Electric machine stator with liquid cooled teethENURE INC·Filed 2020·Application pending·0 cites
- 3871US12125628B2Fluid cooled magnetic elementENURE INC·Filed 2020·Granted Oct 22, 2024·0 cites·17 claims
- 3968US11255612B2Wound strip machineENURE INC·Filed 2020·Granted Feb 22, 2022·0 cites·23 claims
- 4068US10186886B2Portable electrical energy storage and power processing deviceWHISPER ENERGY SYSTEMS INC·Filed 2016·Granted Jan 22, 2019·2 cites·5 claims
- 4168US2022190628A1Isolated multi-port recharge systemENURE INC·Filed 2022·Application pending·0 cites
- 4268US2020176174A1Fluid cooled magnetic elementPRIPPELL TECH LLC·Filed 2019·Application pending·0 cites
- 4367US2022045543A1Isolated multi-port recharge systemENURE INC·Filed 2021·Application pending·0 cites
- 4465US5914590AElectrical power regulatorAEROVIRONMENT INC·Filed 1997·Granted Jun 22, 1999·26 cites·32 claims
- 4563US10756583B2Wound strip machineENURE INC·Filed 2018·Granted Aug 25, 2020·0 cites·23 claims
- 4662US2021006088A1Isolated multi-port recharge systemPRIPPELL TECH LLC·Filed 2020·Application pending·0 cites
- 4762US2018323676A1Electric machine end turn cooling apparatusPRIPPELL TECH LLC·Filed 2018·Application pending·0 cites
- 4857US4415963AFET commutated current-FED inverterCALIFORNIA INST OF TECHN·Filed 1981·Granted Nov 15, 1983·12 cites·8 claims
- 4956US2016087509A1Electric machine end turn cooling apparatusPRIPPEL TECHNOLOGIES LLC·Filed 2015·Application pending·0 cites
- 5054US11791118B2Polyphase switching regulatorENURE INC·Filed 2020·Granted Oct 17, 2023·0 cites·22 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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