Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10351999 | Sleeper block unit for railway track systems | Anabel Hengelmann | 2019-07-16 |
| 9260821 | Method for converting a ballasted track into a slab track | Martin Fink, Marco Habegger | 2016-02-16 |
| 9157192 | Method for producing a slab trackway | Bruno Kiefer, Anabel Hengelmann | 2015-10-13 |