Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10626928 | Assembly for a synchronization unit of a variable ratio gear transmission | Ralf FREDE, Marcus Spreckels | 2020-04-21 |
| 10612603 | Synchronizing device as well as a gear changing transmission for a vehicle | Nils Weber, Marcus Spreckels | 2020-04-07 |
| 10253824 | Friction ring for a synchronization unit | Dietmar Koester, Marcus Spreckels | 2019-04-09 |
| 9863484 | Friction ring, synchronizer ring, synchronizing unit as well as a variable gear transmission for a vehicle | Gary I. Skipper, Marcus Spreckels | 2018-01-09 |
| 9400019 | Friction ring, synchronizer unit, and gear changing transmission for a vehicle | Gary I. Skipper, Marcus Spreckels, Sebastian Augustin | 2016-07-26 |
| 9133894 | Synchronizing ring and gear changing transmission for a vehicle | Marcus Spreckels | 2015-09-15 |
| 8342307 | Synchronizing ring | Marcus Spreckels | 2013-01-01 |