Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5450935 | Torsion damper comprising a clutch friction disc | Wienfried Pfefferkorn | 1995-09-19 |
| 4698045 | Torsional damper with intermediate member for rendering springs inoperative at low torque | Rene Billet, Gustave Chasseguet | 1987-10-06 |
| 4635779 | Clutch cover assembly | Michel Bacher | 1987-01-13 |