Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10882723 | Cylinder retention device | — | 2021-01-05 |
| 10654694 | Cylinder retention device | — | 2020-05-19 |
| 10183847 | Cylinder retention device | — | 2019-01-22 |
| 9121425 | Connection system for crane components | Michael J. Wanek, Robert J. Walker | 2015-09-01 |
| 8534474 | Connection system for crane boom segments | Robert J. Walker | 2013-09-17 |
| 7954657 | Connection system for crane boom segments | Robert J. Walker, Feng Pan | 2011-06-07 |