Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962960 | Capped high-pressure discharge lamp | Manfred Wysietzki, Hans-Juergen Keck | 1999-10-05 |
| 5627428 | Single-based high-pressure discharge lamp particularly for automotive-type headlights | Peter Helbig, Gerhard Behr, Hans-Juergen Keck | 1997-05-06 |