Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11486099 | Rail plate retainer for use with rail tie exchanger | Nicholas Edward Wojnar, Gregory J. Long, Neil Patrick Creegan | 2022-11-01 |
| 6863717 | Plate handling system and a method of removing plates from rail ties | David Johnsen, William D. Straub | 2005-03-08 |
| 6755135 | Combined tie extractor and plate remover for rail maintenance | David Johnsen, William D. Straub | 2004-06-29 |
| 6622633 | Railroad machine centering system | David Johnsen, William D. Straub | 2003-09-23 |
| 6095053 | Bulk spike loading system | David Johnsen, Robert M. Weber, William D. Straub | 2000-08-01 |
| 5730060 | Apparatus and method for removing rail anchors | William D. Straub, Jack K. Hosking, Mickey Topal | 1998-03-24 |
| 5671679 | Fully automatic, multiple operation rail maintenance apparatus | William D. Straub, David Johnsen | 1997-09-30 |
| 5546864 | Rail anchor remover | William D. Straub, Jack K. Hosking, Mickey Topal | 1996-08-20 |
| 5398616 | Automatic rail fastener applicator | Gunars Eidemanis, Jack K. Hosking, William D. Straub | 1995-03-21 |
| 5246181 | Pivoting hose reel assembly | William D. Straub, Jeffrey T. Seawell | 1993-09-21 |
| 5141528 | Separator docking system | Jeffrey T. Seawell | 1992-08-25 |
| 5042515 | Operator protection for high pressure hose machines | — | 1991-08-27 |
| 4944258 | Operator protection for high pressure hose machines | Robert D. Knutson, James C. Wurster | 1990-07-31 |
| 4531780 | Lift mechanism for a dump truck | — | 1985-07-30 |