Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9822491 | Method for covering a ballast bed with foam in a railway track system | Torsten Erwe, Thomas Kleiner | 2017-11-21 |
| 9562332 | Method for producing ballast bodies | Torsten Erwe, Frank Grimberg, Thomas Kleiner | 2017-02-07 |