Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079455 | Escalator or moving walkway | Jens Böge, Michael Tilkorn, Reiner Ludwig | 2011-12-20 |
| 7854311 | Escalator or travelator | Gerben van der Werf, Michael Tilkorn, Reiner Ludwig, Hartmuth Willnauer | 2010-12-21 |