Dennis L. Stephens
29Patents
12h-index
19Co-inventors
78Inventor score
Filing activity: Jun 28, 1976 → Oct 2, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7075273B2 | Automotive electrical system configuration using a two bus structure | Electricity | 92 | Expired |
| US5689230A | Energy monitoring and control system using reverse transmission on AC line | Electricity | 66 | Expired |
| US4063307A | Direct current power converter with start-up and protection circuits | Electricity | 51 | Expired |
| US5834924A | In-rush current reduction circuit for boost converters and electronic ballasts | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5969483A | Inverter control method for electronic ballasts | Electricity | 37 | Expired |
| US5945788A | Electronic ballast with inverter control circuit | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4665323A | Electronically switchable power source | Electricity | 31 | Expired |
| US5767631A | Power supply and electronic ballast with low-cost inverter bootstrap power source | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5867017A | Energy control system with remote switching | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5909365A | Leakage current power supply | Electricity | 15 | Expired |
| US5457360A | Dimming circuit for powering gas discharge lamps | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7005822B1 | Torque ripple reduction for a voltage mode motor controller | Electricity | 14 | Expired |
| US7095214B2 | Systems and method for boosting output of an alternator | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7193395B2 | Systems and method for boosting output of an alternator | Emerging Cross-Sectional Technologies | 10 | Active |
| US7271570B2 | Active rectification of alternator output without using a position sensor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7701079B2 | Automotive electrical system | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7443142B2 | Active rectification of alternator output without using a position sensor | Emerging Cross-Sectional Technologies | 9 | Active |
| US4129816A | Stepping motor control circuit | Electricity | 9 | Expired |
| US9509225B2 | Efficient LLC resonant converter having variable frequency control and fixed frequency phase-shift PWM | Emerging Cross-Sectional Technologies | 8 | Active |
| US5608292A | Single transistor ballast with filament preheating | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5495404A | Multi-resonant inverter | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5729098A | Power supply and electronic ballast with a novel boost converter control circuit | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8159083B2 | Automotive electrical system configuration | Emerging Cross-Sectional Technologies | 3 | Active |
| US7339327B2 | Resonant circuit for halogen lighting | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8624570B2 | Digitally controlling a power converter | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.