Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620129 | Gettered high pressure sodium lamp | — | 1986-10-28 |
| 4620128 | Tungsten laden emission mix of improved stability | — | 1986-10-28 |
| 4617492 | High pressure sodium lamp having improved pressure stability | — | 1986-10-14 |
| 4340399 | Method of removing alkali metal contamination from a gaseous stream | Henry S. Spacil | 1982-07-20 |