Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159229 | Metal halide lamp having CO in gas fill | Edmund M. Passmore | 1992-10-27 |
| 5086276 | Method of determining condensate location in an HID lamp | Yan Li, A. Bowman Budinger, Wojciech W. Byszewski, Philip D. Gregor | 1992-02-04 |
| 5057743 | Metal halide discharge lamp with improved color rendering properties | Zeya K. Krasko | 1991-10-15 |
| 5021703 | Metal halide lamp | Edmund M. Passmore | 1991-06-04 |
| 5003214 | Metal halide lamp having reflective coating on the arc tube | James C. Morris, Zeya K. Krasko | 1991-03-26 |
| 4916351 | Arc tube having crystalline press seal penetration suppression means and lamp employing same | Robert J. Karlotski | 1990-04-10 |
| 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 |
| 4850499 | Method to reduce color temperature variation in metal halide arc tubes | Philip J. White, James C. Morris | 1989-07-25 |
| 4850500 | Dimpled arc tube having no internal end pockets and a lamp employing same | 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 |
| 4791334 | Metal-halide lamp having heat redistribution means | Zeya K. Krasko, Robert J. Karlotski, James C. Morris | 1988-12-13 |
| 4721876 | Light-source capsule containment device and lamp employing such device | Philip J. White, Robert S. White | 1988-01-26 |
| 4709184 | Low wattage metal halide lamp | Zeya K. Krasko | 1987-11-24 |
| 4672267 | High intensity discharge device containing oxytrihalides | Walter P. Lapatovich, Richard W. Liebermann, Jakob Maya | 1987-06-09 |
| 4636687 | Electrode alignment and capsule design for single-ended low wattage metal halide lamps | W. Calvin Gungle, Harold L. Rothwell, Jr., Zeya K. Krasko | 1987-01-13 |
| 4625141 | Low wattage metal halide discharge lamp electrically biased to reduce sodium loss | Zeya K. Krasko, Robert J. Karlotski | 1986-11-25 |
| 4620125 | Low wattage metal halide lamp with inverted domed sleeve | Zeya K. Krasko, Robert J. Karlotski | 1986-10-28 |
| 4620130 | Electrode alignment and capsule design for single-ended low wattage metal halide lamps | W. Calvin Gungle, Harold L. Rothwell, Jr., Zeya K. Krasko | 1986-10-28 |
| 4614890 | High intensity discharge lamp alkali metal loss reduction means | Vincent Meyer | 1986-09-30 |
| 4580989 | Metal halide arc discharge lamp with means for suppressing convection currents within the outer envelope and methods of operating and constructing same | Timothy Fohl, Harold L. Rothwell, Jr. | 1986-04-08 |
| 4499396 | Metal halide arc discharge lamp with means for suppressing convection currents within the outer envelope and methods of operating same | Timothy Fohl, Harold L. Rothwell, Jr. | 1985-02-12 |