Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8235666 | Propeller for a marine propulsion system | Mark Armstrong, Peter John Major | 2012-08-07 |
| 7597598 | Propeller for a marine propulsion system | Dmitri Shmatkov, Mark Armstrong | 2009-10-06 |
| 7473076 | Control method and control system for a controllable pitch marine propeller | Martin C. Robson | 2009-01-06 |
| 7156707 | Marine propulsion system | Dmitri Shmatkov, Mark Armstrong | 2007-01-02 |