Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6142588 | Drive chain for tracked vehicle | Michael Ketting, Volker Wottawah | 2000-11-07 |
| 5803558 | Track roller for crawler chain | Michael Ketting, Holger Humbek, Thorsten Slowak, Frank Heyer, Harald Becker +2 more | 1998-09-08 |