Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7979170 | Railroad snow removal system | David K. Fox, Greggory C. Phelps, Randall G. Honeck | 2011-07-12 |
| 7693623 | Railroad snow removal system | David K. Fox, Greggory C. Phelps, Randall G. Honeck | 2010-04-06 |