Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7565269 | Thrust correction | Robert N Parfitt, Maurice Bristow, Stephen G. Brown | 2009-07-21 |
| 6851303 | Method of determining thrust | Robert N Parfitt, Colin A. Whittle | 2005-02-08 |