Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9911589 | Induction RF fluorescent lamp with processor-based external dimmer load control | John R. Goscha, Victor D. Roberts, Felix I. Alexandrov | 2018-03-06 |
| 9460907 | Induction RF fluorescent lamp with load control for external dimming device | John R. Goscha, Victor D. Roberts | 2016-10-04 |
| 9245734 | Fast start induction RF fluorescent lamp with burst-mode dimming | John R. Goscha, Victor D. Roberts, Walter P. Lapatovich, David Alan Goodman, David Wentzel | 2016-01-26 |
| 8593015 | Battery balancing system | Peter Gottlieb, C. Michael Hoff | 2013-11-26 |
| 6448713 | Sensing and control for dimmable electronic ballast | Naresh Kesavan Rao | 2002-09-10 |
| 6304041 | Self-oscillating dimmable gas discharge lamp ballast | Emad Andarawis Andarawis | 2001-10-16 |
| 5872429 | Coded communication system and method for controlling an electric lamp | Yongping Xia, Sreeraman Venkitasubrahmanian, Raj Jayaraman | 1999-02-16 |
| 5866991 | Induction lamp with oppositely oriented coil winding layers | Timothy A. Taubert, George A. Farrall, Gordon A. Grigor, David O. Wharmby | 1999-02-02 |
| 5691605 | Electronic ballast with interface circuitry for multiple dimming inputs | Yongping Xia, Joshua Zhu, Sreeraman Venkitasubrahmanian, Raj Jayaraman | 1997-11-25 |
| 5604411 | Electronic ballast having a triac dimming filter with preconditioner offset control | Sreeraman Venkitasubrahmanian, Gert W. Bruning, Paul R. Veldman, Raj Jayaraman, Yongping Xia | 1997-02-18 |
| 5559395 | Electronic ballast with interface circuitry for phase angle dimming control | Sreeraman Venkitasubrahmanian, Raj Jayaraman, Yongping Xia | 1996-09-24 |
| 5382881 | Ballast stabilization circuitry for eliminating moding or oscillation of the current envelope in gas discharge lamps and method of operating | Sreeraman Venkitasubrahmanian | 1995-01-17 |
| 4420965 | Cooling effect sensor | Gary D. Burr, Robert W. Smith | 1983-12-20 |
| 4257552 | Method and apparatus for controlling the flow of a temperature regulating fluid | Gary D. Burr | 1981-03-24 |