Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980612 | Clamping assembly | David R. Hall | 2011-07-19 |
| 7654178 | Hydraulic chuck with independently moveable jaws | David R. Hall, Ryan Wach | 2010-02-02 |
| 7503606 | Lifting assembly | David R. Hall, David Fox, Thomas G. Morris, II | 2009-03-17 |
| 5184929 | Material handling apparatus for transferring and unloading a load of material | — | 1993-02-09 |