Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9051041 | Marine propulsion systems having exhaust gas relief outlet | Daniel E. Clarkson | 2015-06-09 |
| 8998663 | Methods of making and operating outboard motors | Ryan G. Bonde | 2015-04-07 |
| 4842559 | Position control system for a marine propulsion device | John M. Griffiths, Michael A. Karls | 1989-06-27 |
| 4836811 | Transom extension mounting assembly for outboard motors | John M. Griffiths, Neil A. Newman | 1989-06-06 |
| 4836151 | Two cycle engine with turbulence generator at reed valves | John M. Griffiths, Robert J. Baumhardt | 1989-06-06 |
| 4781632 | Anti-ventilation plate | Michael E. Frazzell, Michael A. Karls, Ronald M. Steiner, William P. Lang | 1988-11-01 |
| 4773215 | Exhaust control assembly for marine stern drive | Arvid E. Winberg | 1988-09-27 |
| 4487587 | Skeg mounted vane steering system for marine drives | David G. Friedel | 1984-12-11 |