Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9346518 | Snowmobile suspension systems | Christian Michael Muehlfeld, Cody McKinney | 2016-05-24 |
| 9286882 | Systems and methods for active exhaust noise cancellation | Steven G. Mattson, Greg A. Kangas, Zach R. Bustos | 2016-03-15 |
| 8967346 | Multi-stage telescopic shock absorber | Christian Michael Muehlfeld, Steven G. Mattson, David Labyak | 2015-03-03 |
| 8360449 | Suspension assemblies and systems for land vehicles | Christian Michael Muehlfeld, Jeffrey Edward Pruetz | 2013-01-29 |
| 8167073 | Snowmobile rear suspension system | Steven G. Mattson, Christian Michael Muehlfeld | 2012-05-01 |
| 7594557 | Snowmobile rear suspension system | Steven G. Mattson, Christian Michael Muehlfeld | 2009-09-29 |
| 7128180 | Snowmobile rear suspension system | Steven G. Mattson | 2006-10-31 |
| 6926108 | Snowmobile rear suspension system | Steven G. Mattson | 2005-08-09 |
| 6419534 | Structural support system for an outboard motor | Rock J. Helsel, Martin E. Olson Gunderson | 2002-07-16 |
| 6287159 | Marine propulsion device with a compliant isolation mounting system | Rock J. Helsel, Tommy R. Yerby | 2001-09-11 |
| 6135834 | Watercraft exhaust gas control system and method | — | 2000-10-24 |
| 6123620 | Multirate coupler with improved vibration isolation capability | — | 2000-09-26 |