Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12060816 | Oil filter housing and system | Jonathan T. Bykowski, Terrence M. Rotter, William D. Koenigs, Sean A. Rusch, David M. Torres +4 more | 2024-08-13 |
| 11713699 | Plural circuit oil filter | Jonathan T. Bykowski, Terence M. Rotter, William D. Koenigs, Sean A. Rusch, David M. Torres +4 more | 2023-08-01 |
| 8256405 | Breather assembly with standpipe for an internal combustion engine | William H. Atkinson | 2012-09-04 |
| 7503317 | Internal breather for an internal combustion engine | Jonathan R. Chittenden, Daniel F. Krueger | 2009-03-17 |
| 7412962 | Engine grass screen assembly | Gregory E. Schmitz, Todd Baumann | 2008-08-19 |
| 6276345 | Dual fuel system for an internal combustion engine | Timothy S. Thiel, Christopher R. Dudzinski | 2001-08-21 |