Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6902357 | Cutting tool | Matthias Blessing | 2005-06-07 |
| 6824342 | Fastening element with a prestress member having an elastic bearing surface | Horst-Detlef Gassmann, Michael Mergenbaum | 2004-11-30 |
| 4840527 | Expansion dowel assembly | Hans Gschwend, Hans Hachtel | 1989-06-20 |