Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6712572 | Expansion dowel | Heinz Bisping, Jurgen Wieser, Claudia Zimmerer | 2004-03-30 |
| 6238128 | Dowel | Werner Kaibach, Stefan Raber, Hans-Jurgen Negele, Ulrich Genschmer | 2001-05-29 |