Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4451760 | Long life incandescent tungsten-halogen lamp | Robert M. Griffin | 1984-05-29 |
| 4213170 | Reflector lamp with lens having light-modifying coating | Stephen F. Kimball | 1980-07-15 |