Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6972521 | Low-pressure gas discharge lamp having a mercury-free gas filling with an indium compound | Robert Scholl, Rainer Hilbig, Johannes Baier | 2005-12-06 |
| 6731070 | Low-pressure gas discharge lamp with a mercury-free gas filling | Robert Scholl, Rainer Hilbig, Johannes Baier, Thomas Juestel, Peter Josef Schmidt | 2004-05-04 |
| 6603267 | Low-pressure gas discharge lamp with a copper-containing gas filling | Rainer Hilbig, Robert Scholl, Johannes Baier | 2003-08-05 |