Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9286882 | Systems and methods for active exhaust noise cancellation | Stephen E. Polakowski, Greg A. Kangas, Zach R. Bustos | 2016-03-15 |
| 8967346 | Multi-stage telescopic shock absorber | Stephen E. Polakowski, Christian Michael Muehlfeld, David Labyak | 2015-03-03 |
| 8167073 | Snowmobile rear suspension system | Stephen E. Polakowski, Christian Michael Muehlfeld | 2012-05-01 |
| 7594557 | Snowmobile rear suspension system | Stephen E. Polakowski, Christian Michael Muehlfeld | 2009-09-29 |
| 7128180 | Snowmobile rear suspension system | Stephen E. Polakowski | 2006-10-31 |
| 6926108 | Snowmobile rear suspension system | Stephen E. Polakowski | 2005-08-09 |