Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200669 | Elevated power high-pressure discharge lamp | Hans-Werner Goelling, Jorn Dierks, Jurgen Begemann | 1993-04-06 |
| 5047908 | Lighting fittings | Wilfred A. Price | 1991-09-10 |
| 4677338 | Electric lamps having outer stem surface which minimizes internal reflections | Alan Prest, Paul S. M. Thorpe | 1987-06-30 |
| 4550269 | Electric discharge lamps | — | 1985-10-29 |