Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7150595 | Undercut anchor element that can be mounted with positive engagement | Ingrid Liebig-Hundius, Legal Representative, Heinz Joachim Liebig, Legal Representative | 2006-12-19 |
| 5108240 | Heavy load bearing toggle bolt | — | 1992-04-28 |
| 4690597 | Positive arrangement for fastening a dowel | — | 1987-09-01 |
| 4613254 | Expanding dowel with setting-force indicator | — | 1986-09-23 |
| 4500239 | Interlocking toggle bolt | — | 1985-02-19 |
| 4411324 | Bore undercutting tool | — | 1983-10-25 |
| 4315708 | Positively locking toggle | — | 1982-02-16 |
| 4293259 | Locking toggle bolt | — | 1981-10-06 |