Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7520415 | Method of repairing a rail | Richard F. Kral, Shane A. Mayhill, Matthew Q. Johnson, Daniel Coomer | 2009-04-21 |
| 6515249 | Method of railroad rail repair | Greg A. Valley | 2003-02-04 |