Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12037750 | Gauge plate insulator | Steven D. Singleton, William T. Urmson, Jr., John W. Mospan | 2024-07-16 |
| 10961665 | Rail joint assembly having forged rail joint bars | Steven D. Singleton, William T. Urmson, Jr., John W. Mospan, Donald A. Bielski | 2021-03-30 |
| D885977 | Anti-rail rollover device | Steven D. Singleton, Donald A. Bielski, John W. Mospan | 2020-06-02 |
| 5394958 | Rail lubrication apparatus | William T. Urmson, Jr., Thomas Walker | 1995-03-07 |
| 5348120 | Rail lubrication apparatus | William T. Urmson, Jr., Thomas Walker | 1994-09-20 |
| 4928600 | Railroad spike holding apparatus with acute angled jaws | William T. Urmson, Jr., Emeric Gaslevic | 1990-05-29 |