Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827535 | Dowel bolt with expansion control | Helmut Fuchs, Thomas Doppelbauer, Herbert Kaufmann, Frank Anschütz | 2004-12-07 |
| 6722830 | Fastener driving head | Michael Werner, Franz Huber | 2004-04-20 |
| 5651650 | Attachment assembly with anchor bolt and expansion wedge | Armin Herb | 1997-07-29 |
| 5628579 | Expansion dowel with sleeve and expansion member | — | 1997-05-13 |
| 5294227 | Self-tapping screw | Armin Herb | 1994-03-15 |