Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293473 | Railroad substructure | Hermann Ortwein | 2001-09-25 |
| 5165598 | Resiliently mounted rail for rail vehicles | — | 1992-11-24 |
| 4915298 | Rail mount for railway-type rails | — | 1990-04-10 |