Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362969 | High intensity discharge lamp including arc extinguishing means | W. Calvin Gungle | 1982-12-07 |
| 4348615 | Discharge lamp operating circuit | Robert L. Garrison | 1982-09-07 |
| 4321501 | Low wattage, high pressure metal vapor discharge lamp for minimizing detrimental glow time | George J. English, William M. Keeffe | 1982-03-23 |
| 4321504 | Low wattage metal halide arc discharge lamp | William M. Keeffe, John A. Scholz | 1982-03-23 |
| 4320322 | Electrode geometry to improve arc stability | William M. Keeffe, W. Calvin Gungle | 1982-03-16 |