Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7944073 | Power generator and turbine unit | Kenneth Roderick Stewart, Donald MacLeod Stewart | 2011-05-17 |
| 7686075 | Downhole pump assembly and method of recovering well fluids | Kenneth Roderick Stewart | 2010-03-30 |