Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764021 | Concrete railroad grade crossing panels | Thomas L. Egan | 2004-07-20 |
| 6705536 | Concrete railroad grade crossing panels | Thomas L. Egan | 2004-03-16 |
| 6588676 | Concrete railroad grade crossing panels | Thomas L. Egan | 2003-07-08 |