Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12385551 | Motor-gearbox arrangement | Frank Cunliffe | 2025-08-12 |
| 8545360 | Variable ratio transmission | Frank Cunliffe | 2013-10-01 |
| 8308602 | Gear mounting | — | 2012-11-13 |
| 8157701 | Lightweight gearing | — | 2012-04-17 |
| 8075443 | Planetary gear set | Frank Cunliffe | 2011-12-13 |
| 7559870 | Torque-limiting coupling | — | 2009-07-14 |
| 5888162 | Infinitely variable transmission with power splitting | Frank Moeller, William Turner | 1999-03-30 |
| 5358458 | Planetary gear units | — | 1994-10-25 |
| 4700583 | Gear mounting | — | 1987-10-20 |
| 4640153 | Accessory drive for a turbine engine | James William Brogdon, Kenneth D. Allen, John S. Barton | 1987-02-03 |
| 4542658 | Torque measuring device | Kenneth D. Allen, James William Brogdon, John S. Barton | 1985-09-24 |
| 4449697 | Multiple drum winches | — | 1984-05-22 |
| 4236696 | Multicapstan traction unit | John T. H. Webb | 1980-12-02 |