Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11326488 | Zero turning radius mower oil extension kit | Timothy J. Lewis, Casey L. Krause | 2022-05-10 |
| 5797180 | Method of manufacturing a plastic camshaft with a tubular metal insert | — | 1998-08-25 |
| 5632243 | Self-cleaning air filter assembly | — | 1997-05-27 |
| 5205243 | Crankcase breather having a fitted retainer for retaining a valved cup assembly | — | 1993-04-27 |
| 5184586 | Mechanical compression release for an internal combustion engine | — | 1993-02-09 |
| 4875439 | Marine propulsion system with fuel line cooler | Steven L. Widmer, Gerald F. Neisen, Jeffrey P. Ruhnke, Thomas J. Steffes | 1989-10-24 |
| 4865004 | Marine propulsion system with fuel line cooler | Steven L. Widmer, Gerald F. Neisen, Jeffrey P. Ruhnke, Thomas J. Steffes | 1989-09-12 |
| 4768492 | Marine propulsion system with fuel line cooler | Steven L. Widmer, Gerald F. Neisen, Jeffrey P. Ruhnke, Thomas J. Steffes | 1988-09-06 |