Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9908750 | Tensile truss mast | Albert J. Sturm, Jr., Michael Hennessey | 2018-03-06 |
| 6591875 | Cart for bulk filling intermodal containers | Richard David Zaun, Richard Wayne Hook, Bruce L. Warman, Gregory Knott, John Robinson +5 more | 2003-07-15 |
| 6374927 | Pipe retention and cartridge locking system for a horizontal directional drill | Jeffrey S. Volden | 2002-04-23 |
| 5632575 | Method and apparatus for controlled pumping of bentonite around a pipe jacked tunnel | Frank J. Lorenzen | 1997-05-27 |