Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8531106 | High-pressure discharge lamp with starting aid and method for producing the same | Markus Demmert, Andreas Hohlfeld, Ingmar Wieler, Ludger Wilken | 2013-09-10 |
| 5625256 | High-pressure discharge lamp having a ceramic discharge vessel, sintered body suitable therefor, and method for producing the sintered body | Rita Tiedt, Koichiro Maekawa, Junichi Doi | 1997-04-29 |
| 5079479 | Dual-envelope high-pressure discharge lamp with thermostatically controlled starting strip | Manfred Koenig, Klaus Krämer | 1992-01-07 |