Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289708 | Cutting tool for a lock cylinder | Peter Wollweber | 1994-03-01 |
| 5287712 | Locking arrangement consisting of key and lock cylinder | — | 1994-02-22 |
| 5193372 | Lock cylinder | Peter Wollweber | 1993-03-16 |
| 5104164 | Lock with facility for preventing unauthorized entry | — | 1992-04-14 |
| 5010750 | Lock cylinder with electromagnetic tumbler | Werner Boser, Robert J. Wedekind | 1991-04-30 |
| 4785493 | Door check | Horst Tillmann | 1988-11-22 |
| 4660250 | Door closer | Horst Tillman | 1987-04-28 |
| 4658468 | Door check | Horst Tillmann | 1987-04-21 |
| 4580365 | Automatic door lock | — | 1986-04-08 |