Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6267548 | Automatic over center system | Richard J. Lech, Roger D. Mickelson | 2001-07-31 |
| 6128900 | Hydraulic fluid supply system | Richard A. Atkins, Richard J. Lech, Curtis R. Lyons, Michael G. Nahorny, Robert T. Peterson | 2000-10-10 |