Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647721 | Hydraulic system for suppressing oscillation in heavy equipment | Dennis Heyne, Richard J. Lech, David W. Swaim, Guy T. Stoever, Ian MacLeod | 2003-11-18 |
| 6640409 | Method for retrofitting a swing damping valve circuit to a work vehicle | Dennis Heyne, Richard J. Lech | 2003-11-04 |
| 6532738 | System for reducing boom swing oscillation in a backhoe assembly | Dennis Heyne, Richard J. Lech | 2003-03-18 |