Wally E. Rippel
46Patents
15h-index
15Co-inventors
78Inventor score
Filing activity: Sep 27, 1979 → Jul 24, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4384321A | Unity power factor switching regulator | Emerging Cross-Sectional Technologies | 230 | Expired |
| US5041780A | Integrable current sensors | Physics | 177 | Expired |
| US7256516B2 | Battery charging system and method | Emerging Cross-Sectional Technologies | 169 | Expired |
| US5099186A | Integrated motor drive and recharge system | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4920475A | Integrated traction inverter and battery charger apparatus | Emerging Cross-Sectional Technologies | 91 | Expired |
| US4275130A | Bipolar battery construction | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6232742A | Dc/ac inverter apparatus for three-phase and single-phase motors | Emerging Cross-Sectional Technologies | 60 | Expired |
| US5751150A | Bidirectional load and source cycler | Electricity | 49 | Expired |
| US4884631A | Forced air heat sink apparatus | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4353969A | Quasi-bipolar battery construction and method of fabricating | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6954010B2 | Lamination cooling system | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4603093A | Lead-acid battery | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8970075B2 | Liquid cooled electric motor | Electricity | 25 | Active |
| US7851966B2 | Stator for electric machine with improved efficiency and thermal performance | Emerging Cross-Sectional Technologies | 24 | Active |
| US5441824A | Quasi-bipolar battery requiring no casing | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4664992A | Composite battery separator | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4570212A | Silicon controlled rectifier polyphase bridge inverter commutated with gate-turn-off thyristor | Electricity | 13 | Expired |
| US4319318A | Voltage reapplication rate control for commutation of thyristors | Electricity | 13 | Expired |
| US4873460A | Monolithic transistor gate energy recovery system | Electricity | 13 | Expired |
| US5914590A | Electrical power regulator | Emerging Cross-Sectional Technologies | 11 | Expired |
| US8415904B2 | Open delta motor drive with integrated recharge | Electricity | 10 | Active |
| US7530156B2 | Lamination cooling system formation method | Emerging Cross-Sectional Technologies | 9 | Expired |
| US9985500B2 | Induction motor with transverse liquid cooled rotor and stator | Electricity | 9 | Active |
| US4874681A | Woven-grid sealed quasi-bipolar lead-acid battery construction and fabricating method | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8201316B2 | Lamination cooling system formation method | Emerging Cross-Sectional Technologies | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.