Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967443 | IR-coated halogen lamp using reflective end coats | Laurence Bigio, Rajasingh Israel, Ashfaqul Islam Chowdhury | 2005-11-22 |
| 6392352 | Burnout protection for lamps wired in series | William R. Walters | 2002-05-21 |
| 6208090 | Reduced voltage and time delay to eliminate filament hot shock | Ludwig Skilskyj, Leonard E. Hoegler, Edward J. Collins | 2001-03-27 |
| 6168293 | Spot par reflector lamp | Ludwig Skilskyj, Edward J. Collins, Jacob Brann | 2001-01-02 |