Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501457 | Circuit arrangement for regulating light transmission of an electrochromic glass pane | Gerd Bruechmann, Ulrich Huetzen | 2002-12-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501457 | Circuit arrangement for regulating light transmission of an electrochromic glass pane | Gerd Bruechmann, Ulrich Huetzen | 2002-12-31 |