Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5020613 | Device for cutting undercuts | — | 1991-06-04 |
| 4984945 | Expansion dowel assembly | — | 1991-01-15 |
| 4929134 | Expansion dowel assembly | — | 1990-05-29 |
| 4854482 | Dispensing device for flowable masses | — | 1989-08-08 |
| 4714391 | Expansion anchor assembly | — | 1987-12-22 |
| 4678383 | Expansion anchor assembly | — | 1987-07-07 |
| 4501520 | Expansion dowel assembly | — | 1985-02-26 |
| 4452285 | Device for filling boreholes | Erich Leibhard, Armin Herb, Gusztav Lang | 1984-06-05 |