Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5562168 | Impact hammer and driving tool | — | 1996-10-08 |
| 4801084 | Base plate insert | — | 1989-01-31 |
| 4778106 | Stud, arc shield and rail clip for securing railroad rails | Leslie J. Diener, William F. Langman, George P. Dunn | 1988-10-18 |
| 4254909 | Rail cleat | — | 1981-03-10 |
| D257557 | Rail fastening clip | — | 1980-11-25 |