Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118410 | Device for producing a cavity in a soil | Marc Peters, Steffen Praetorius | 2021-09-14 |
| 11118454 | Tunnel boring device and system for the hydraulic removal of cuttings, and system for producing a stable fluid pressure for a boring fluid in the region of a cutting disk of the tunnel boring device | Michael Lubberger | 2021-09-14 |
| 10941624 | Drill string element | Michael Lubberger, Tobias Engel | 2021-03-09 |