Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10525992 | Light signal | Rolf Eckl, Kay Koester | 2020-01-07 |
| 10328958 | Light Signal | Rolf Eckl, Kay Koester | 2019-06-25 |
| 8702282 | Light signal | Joerg Birkholz, Rolf Eckl, Uwe Frost, Kay Koester, Norbert Poepplow | 2014-04-22 |