Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6510678 | Load compensation adjustment in lawnmower having independent suspension | David A. Ferris, Henry T. Nordberg | 2003-01-28 |
| 6244025 | Load compensation adjustment in lawnmower having independent suspension | David A. Ferris, Henry T. Nordberg | 2001-06-12 |
| 4726103 | Fixture for attaching guideways to a machine tool base | Edwin L. Knight | 1988-02-23 |
| 4626299 | Method of attaching guideways to a machine tool bed | Edwin L. Knight | 1986-12-02 |