Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11619336 | Pipe slitting machine with rope storage reel | Mark D. Randa, Robert F. Crane, Steven W. Wentworth | 2023-04-04 |
| 10927602 | Reversible pneumatic pipe ramming tool | Steven W. Wentworth, Robert F. Crane, Mark D. Randa | 2021-02-23 |
| 10221048 | Crane assembly | Bradley G. Ethington | 2019-03-05 |
| 9938121 | Crane assembly | Bradley G. Ethington | 2018-04-10 |
| 9574696 | Stepped load pull back using rams | — | 2017-02-21 |