RH

Roger J. Hapka

CE Cummins Engine: 5 patents #54 of 765Top 8%
PI Polaris Industries: 4 patents #210 of 746Top 30%
Overall (All Time): #573,028 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9358882 Default open differential control switch 2016-06-07
8827025 Default open differential control switch 2014-09-09
7316288 All terrain vehicle with multiple steering modes Jeff Bennett, Brett Gass, Louis J. Brady, Ryan K. Lovold 2008-01-08
7278511 Controller for steering a vehicle Brett Gass, Jeff Bennett, Gary L. Gustafson 2007-10-09
6306063 System for controlling combustion engine performance in accordance with driver behavior Matthew J. Horgan 2001-10-23
5954617 System for controlling internal combustion engine performance in accordance with driver behavior Matthew J. Horgan 1999-09-21
5619412 Remote control of engine idling time 1997-04-08
5070832 Engine protection system Dean S. Anderson 1991-12-10
4771739 Cooling system for an internal combustion engine 1988-09-20