Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540102 | Snow blower apparatus | Richard M. Olmr | 2009-06-02 |
| 5893443 | Drive train of a pulley-driven gearbox and clutch device therefor | — | 1999-04-13 |
| 5605033 | Lawnmowing apparatus with grass collector fullness detector | — | 1997-02-25 |
| 5555961 | On the go gear shifter | — | 1996-09-17 |
| 5524507 | Connecting rod | Todd R. Gerhardt, Robert C. Hamann | 1996-06-11 |
| 5333575 | Internal combustion engine using lubricating oil for effective and uniform cooling | — | 1994-08-02 |
| 5301644 | Fuel shut-off mechanism for internal combustion engines | — | 1994-04-12 |
| 5235942 | Cylinder head assembly | — | 1993-08-17 |
| 4980592 | Flywheel magnet rotor assembly | Lakhbir S. Suchdev | 1990-12-25 |
| 4951403 | Single stage snowthrower | — | 1990-08-28 |
| 4916837 | Single stage snowthrower | Robert D. Batting, John W. Hopkins | 1990-04-17 |
| 4393739 | Top sharpening chain | — | 1983-07-19 |
| 4348927 | Safety saw chain | — | 1982-09-14 |