Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5419664 | Expansible anchor and method of making same | Wolfgang Hengesbach, Ralf Kopff, Eberhard Mader, Gerhard Porlein, Jurgen Striebich | 1995-05-30 |
| 5315800 | Anchoring rod for anchoring an article to a base using a synthetic resin | Wilfried Weber, Rainer Mallee, Bernd Hein, Harald Guth, Manfred Haage | 1994-05-31 |
| 5234294 | Drilling device for producing drilled holes with undercuts | Hartmut Hoppe | 1993-08-10 |
| 5197833 | Drill tool for making a drilled hole with an undercut | Harmut Hoppe | 1993-03-30 |
| 4973207 | Fastening assembly | — | 1990-11-27 |