Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10787109 | System and method for operating a ballast car hopper door | Nathan A. Landes, Khristopher R. Wall, Stephen Bedingfield, Douglas P. Thornton | 2020-09-29 |
| 6526339 | GPS controlled multiple source material application | Stanley M. Herzog, Ronald Schmitz, Ivan E. Bounds, Randy L. Poggemiller, Stephen Bedingfield +1 more | 2003-02-25 |