Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884009 | Color selectable source for pulsed arc discharge lamps | Jeffrey O. Grant | 1989-11-28 |
| 4874988 | Pulsed metal halide arc discharge light source | George J. English, Donald F. Garrity, Jr. | 1989-10-17 |
| 4864180 | Metal-halide arc tube and lamp having improved uniformity of azimuthal luminous intensity | George J. English, Thomas J. Gilligan | 1989-09-05 |
| 4850918 | Pulsed metal halide source | George J. English, Donald F. Garrity, Jr. | 1989-07-25 |
| 4847530 | Arc discharge lamp with elongated outer envelope orthogonal to lamp base | George J. English | 1989-07-11 |