Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229686 | Mercury vapor discharge lamp containing means for reducing mercury leaching | Richard A. Fowler | 1993-07-20 |
| 5229687 | Mercury vapor discharge lamp containing means for reducing mercury leaching | Richard A. Fowler | 1993-07-20 |
| 4659965 | High pressure discharge lamp with thermal switch | — | 1987-04-21 |
| 4649320 | Thermal protector for circular fluorescent lamp assembly | Harold L. Hough | 1987-03-10 |
| 4587454 | Incandescent lamp with improved press seal | Owtis J. Ragland, Jr., deceased | 1986-05-06 |
| 4528479 | Circuit breaker by-pass element | John W. Shaffer | 1985-07-09 |
| 4488091 | High intensity discharge lamp | Martin E. Muzeroll, John F. Waymouth, Robert J. Karlotski | 1984-12-11 |
| 4373146 | Method and circuit for operating discharge lamp | Fredrick W. Paget | 1983-02-08 |
| 4189657 | Method of making sealed beam lamp | Stephen F. Kimball, Lewis H. Palmer, III | 1980-02-19 |