Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6763767 | Railcar mover having negative cambered rail wheels | Scott Michael Higgins | 2004-07-20 |
| 4630524 | Control valve for pile driver and method | — | 1986-12-23 |
| 4429751 | Control system for pile hammers | Ralph Myers | 1984-02-07 |