Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9605780 | Coupling, in particular for connecting anchor rods | Ferdinand Coerschulte | 2017-03-28 |
| 5088866 | Indicator-nut threaded coupling with load-indicating device adapted to be arranged on anchors, in particular grouted anchors for mining or the like | Joachim Isenberg | 1992-02-18 |
| 4752157 | Trench shoring box unit | Joachim Isenberg | 1988-06-21 |