Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8356768 | Multiple drive-path transmission with torque-splitting differential mechanism | Frank B. Stamps, Charles J. Kilmain, Ryan T. Ehinger, Bob Collins | 2013-01-22 |
| 8141812 | Multiple drive-path transmission with torque-splitting differential mechanism | Frank B. Stamps, Charles J. Kilmain, Ryan T. Ehinger, Bob Collins | 2012-03-27 |
| 4185511 | Torque-transmitting, torque-sensing system | James R. Blackburn | 1980-01-29 |