Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919935 | Brightness sensor | Gerfried Rüdiger, Jens Richter | 2011-04-05 |
| 7915839 | Method and electronic control system to compensate for the aging-related brightness loss of an electroluminescent element | — | 2011-03-29 |