Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520046 | Low backlash multimode clutch | Calahan B. Campton, Michael W. Campbell | 2019-12-31 |
| 10280989 | Twin hydraulic piston for a selectable clutch module | Calahan B. Campton, Christopher A. Spangler | 2019-05-07 |
| 10247261 | Clutch actuation using differential pressure | Calahan B. Campton, Christopher A. Spangler | 2019-04-02 |