Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |