Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8647232 | Group transmission device | Manfred Guggolz, Karl Krieger, David Ulmer | 2014-02-11 |
| 8281913 | Transmission device for a motor vehicle | Manfred Guggolz, Werner Hillenbrand, David Ulmer | 2012-10-09 |