Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5894714 | Brake for self-propelled vehicle | Llewellyn E. Williams | 1999-04-20 |
| 5848520 | Control for hydrostatic transmissions | Jack E. Arfstrom, Llewellyn E. Williams | 1998-12-15 |
| 5065568 | Mower deck height adjustment mechanism | Michael J. O'Neill, Donald L. Cutshall | 1991-11-19 |
| 5025618 | Fuel tank with stepped interior gauge | — | 1991-06-25 |
| 5020308 | Self-propelled steerable walk behind mower linkage | Michael J. O'Neill, David C. Polak, Donald L. Cutshall | 1991-06-04 |
| 4984417 | Edger with belt braking device | Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald Emil Niosi, Tetsuzo Fujikawa +2 more | 1991-01-15 |
| 4962631 | Edger | Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald Emil Niosi, Tetsuzo Fujikawa +2 more | 1990-10-16 |
| RE30306 | Air intake silencer | James W. Moore | 1980-06-17 |
| 4186819 | Exhaust system for a two-stroke engine | Klaus F. Nowak | 1980-02-05 |