Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7857564 | Expansion dowel | Juergen Wieser, Simon Martin | 2010-12-28 |
| 6827535 | Dowel bolt with expansion control | Helmut Fuchs, Herbert Kaufmann, Hubert Forster, Frank Anschütz | 2004-12-07 |
| 5921733 | Self-cutting undercutting dowel | Werner Kaibach, Hanspeter Schad, Stefan Raber | 1999-07-13 |
| 5807049 | Spreading anchor with undercut-forming cutting means | Hermann Beck, Helmut Gassner, Markus Hartmann, Susanne Kossian, Rainer Kussmaul +2 more | 1998-09-15 |