Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424020 | Miniature photoflash unit using subminiature flash lamps | Andre C. Bouchard, Harold H. Hall, Jr., John A. Scholz | 1984-01-03 |
| 4415829 | Direct current operable arc lamp | Harold L. Rothwell, Jr., William M. Keeffe | 1983-11-15 |
| 4386292 | Projection lamp comprising single ended arc discharge lamp and an interference filter | Harold L. Rothwell, Jr., William M. Keeffe | 1983-05-31 |
| 4348173 | Subminiature photoflash lamp with spaced-apart, light-emitting pyrotechnic charges | John A. Scholz | 1982-09-07 |
| 4341513 | Subminiature photoflash lamp having light-emitting pyrotechnic charge | John A. Scholz | 1982-07-27 |
| 4321501 | Low wattage, high pressure metal vapor discharge lamp for minimizing detrimental glow time | Harold L. Rothwell, Jr., William M. Keeffe | 1982-03-23 |
| 4315733 | Photoflash lamp with loose powder composition and method of making | Andre C. Bouchard | 1982-02-16 |
| 4308483 | High brightness, low wattage, high pressure, metal vapor discharge lamp | William M. Keeffe, Harold L. Rothwell, Jr., W. Calvin Gungle | 1981-12-29 |
| 4298908 | Flashlamp disk containing internal reflectors | Robert E. Levin, Timothy Fohl | 1981-11-03 |
| 4239369 | Camera and reflector having offset optical and mechanical axes | Robert E. Levin | 1980-12-16 |