Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5038901 | Clutch control system in which the clutch actuation is initiated by control of the gear shift lever | David Parsons, Alastair J. Young, Roger P. Jarvis | 1991-08-13 |
| 4561530 | Electronic clutch control system | David Parsons, John Vivian Comfort | 1985-12-31 |
| 4518064 | Clutch control means | — | 1985-05-21 |
| 4497397 | Clutch control system | Andrew Mallion | 1985-02-05 |
| 4481843 | Automatic transmission | Roger P. Jarvis | 1984-11-13 |
| 4473143 | Clutch control means | — | 1984-09-25 |
| 4432445 | Clutch control systems | — | 1984-02-21 |
| 4418810 | Clutch control system | — | 1983-12-06 |
| 4413714 | Clutch control system | — | 1983-11-08 |
| 4412461 | Rotary transmission electronic control system providing automatic changes of speed ratio | — | 1983-11-01 |
| 4403682 | Clutch control apparatus | Peter Norris, Frederick J. Parker | 1983-09-13 |