Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790742 | Drilling apparatus and method for drilling | — | 2017-10-17 |
| 9512591 | Cleaning device for cleaning a bottom of a borehole and method for creating a foundation element | Ulli WIEDENMANN, Helmut Hross | 2016-12-06 |