Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10876366 | Core saw and support frame structure | James T. Dungan | 2020-12-29 |
| 7874419 | Contained drive system for chain conveyor belt to reduce catenary sag | Michael A. Hosch | 2011-01-25 |
| 7735638 | Conveyor frame assembly having side rails including multiple attachment slots and adjustable cross supports | Leroy Hundley, Craig Bude, Michael A. Hosch, Ryan Johnson | 2010-06-15 |
| 7500651 | Portable winch | Steven W. Wentworth | 2009-03-10 |
| 7490814 | Cable pulling machine | — | 2009-02-17 |
| 7175367 | Cable pulling machine | — | 2007-02-13 |
| 7048257 | Winch with telescoping mast | Steven W. Wentworth | 2006-05-23 |
| 6755593 | Pipe replacement method and rotary impact mechanism for pipe bursting | Steven W. Wentworth, Robert F. Crane | 2004-06-29 |
| 6568488 | Roller pipe burster | Steven W. Wentworth, Robert F. Crane | 2003-05-27 |