Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823614 | Rail bounded snow blower equipment | — | 2004-11-30 |
| 6719616 | Rail grinding apparatus | Donald L. Minge | 2004-04-13 |
| 6033291 | Offset rail grinding | Tab A. Ashwill | 2000-03-07 |
| 5347933 | Railway ballast cleaning machine with integrated hopper car | James H. Perkins | 1994-09-20 |
| 5172638 | Dust suppression system for railroad track ballast cleaning apparatus | Charles R. Mackey | 1992-12-22 |