Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890030 | Metal halide discharge lamp with arc tube temperature equalizing means | Zeya K. Krasko | 1989-12-26 |
| 4888517 | Double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope | Robert J. Karlotski, Joseph S. Kulik, Simone P. Bazin | 1989-12-19 |
| 4859899 | Metal-halide lamp having heat redistribution means | Zeya K. Krasko, Robert J. Karlotski, James C. Morris | 1989-08-22 |
| 4850500 | Dimpled arc tube having no internal end pockets and a lamp employing same | Philip J. White, James C. Morris | 1989-07-25 |
| 4850499 | Method to reduce color temperature variation in metal halide arc tubes | Philip J. White, James C. Morris | 1989-07-25 |
| 4825127 | Metal halide discharge lamp for plant growing | Zeya K. Krasko | 1989-04-25 |
| 4818915 | Arc discharge lamp with ultraviolet radiation starting source | Gregory Zaslavsky, Nikolaos Barakitis | 1989-04-04 |
| 4812714 | Arc discharge lamp with electrodeless ultraviolet radiation starting source | John F. Waymouth, Gregory Zaslavsky | 1989-03-14 |