Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392123 | Channel-retaining device, drainage system and method | Stephan G. Meier, Marco Wandkowski | 2025-08-19 |
| 11933034 | Drainage system, drainage units, and methods | Marco Wandkowski, Sascha Müller-Baku | 2024-03-19 |
| 10428488 | Support structure of a cover | Andrew Allbright, James Canney, Prasanna Kumar | 2019-10-01 |
| 10184239 | Covering consisting of a plurality of gratings inserted one into another | Hans-Julius Ahlmann | 2019-01-22 |
| 9809935 | Rail of a drainage channel | Jan Mieze, Michael Sieber | 2017-11-07 |
| 9708806 | Drainage body surface unit | — | 2017-07-18 |
| 9169630 | Cover element | Thorsten Wichmann, Jan Mieze | 2015-10-27 |