Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4918352 | Metal halide lamps with oxidized frame parts | Carl H. Hess, Frank I. Ewing, Timothy D. Russell, Edward G. Zubler | 1990-04-17 |
| 4574219 | Lighting unit | John M. Davenport, Richard L. Hansler, John M. Blank, Dimitri M. Speros, Arthur S. Homa +2 more | 1986-03-04 |
| 4393100 | Method of coating a fused silica envelope | — | 1983-07-12 |
| 4339686 | Metal vapor lamp having internal coating for extending condensate film | — | 1982-07-13 |
| 4257765 | Color corrected flash lamp | John R. Debesis | 1981-03-24 |