Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7008325 | Retainer ring for tripod constant velocity joints | Peter Bongartz, Bradley W. Doner, Michael Hopson | 2006-03-07 |
| 6699134 | Anti-shudder tripod type CV universal joint | Michael Hopson, Holm Schmitt, Robert Keller, Bradley W. Doner, Alexander Haertel | 2004-03-02 |
| 5893801 | Segmented cross groove plunging constant velocity joint | Michael Hopson, Daniel J. Schmidt | 1999-04-13 |