Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679679 | Clutch driven plate assembly with anti-backlash damping | Bruce Mullard | 1987-07-14 |
| 4651859 | Clutch driven plate assembly with a two-part hub | Robert A. Frantz, III | 1987-03-24 |
| 4643287 | Multi-stage torsional damping device | — | 1987-02-17 |
| 4620626 | Clutch driven plate assembly with an anti-rattle damper | Bruce Mullard | 1986-11-04 |
| 4615426 | Clutch driven plate assembly | — | 1986-10-07 |
| 4556136 | Clutch driven plate assembly | — | 1985-12-03 |
| 4553655 | Two-stage clutch damper assembly | Paul Louis Schmitz | 1985-11-19 |
| 4548302 | Two-stage clutch damper assembly | Robert A. Frantz, III | 1985-10-22 |
| 4548311 | Vehicle torsional damper having low rate and high rate damping stages | — | 1985-10-22 |
| 4537296 | Clutch driven plate assembly | Richard T. Popchock | 1985-08-27 |
| 4502582 | Wet clutch assembly | Richard T. Popchock | 1985-03-05 |
| 4471863 | Multi-stage torsional damping device | — | 1984-09-18 |
| 4461376 | Clutch driven plate assembly with multi-part hub | Kenneth A. Weage, deceased | 1984-07-24 |
| 4446955 | Clutch driven plate assembly with a floating hub | — | 1984-05-08 |
| 4418812 | Clutch driven plate assembly with a floating hub | — | 1983-12-06 |
| 4377225 | Clutch driven plate assembly with variable friction area | Richard T. Popchock | 1983-03-22 |
| 4375254 | Clutch driven plate assembly with cushioned friction material | — | 1983-03-01 |
| 4303149 | Clutch driven plate with spline locking hub | — | 1981-12-01 |
| 4239097 | Multiple stage vibration damper assembly | John F. Greacen, Kerry G. Knight | 1980-12-16 |