Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758074 | High-security round key and lock therefor | — | 2004-07-06 |
| 6622538 | Cylinder lock with tumbler plates | Reinhard Amon | 2003-09-23 |
| 6427506 | Flat-key lock | — | 2002-08-06 |
| 5797287 | Flat key | — | 1998-08-25 |
| 4977767 | High-security flat key and lock therefor | — | 1990-12-18 |
| 4686841 | Rotatable magnetic tumbler and magnetic lock containing same | Erich Csapo | 1987-08-18 |
| 4669284 | Lock cylinder with rotatable magnetic tumblers | Erich Csapo | 1987-06-02 |
| 4665726 | Lock cylinder with rotatable magnetic tumblers | Erich Csapo | 1987-05-19 |
| 4612787 | Arrangement for cylinder locks | Adalbert Paar | 1986-09-23 |
| 4603566 | Safety lock | Juergen Kruehn | 1986-08-05 |
| 4516416 | Locking device and key | Erich Csapo | 1985-05-14 |
| 4440007 | Control device for cylinder locks | — | 1984-04-03 |
| 4434636 | Lock having a cylinder core and a housing | — | 1984-03-06 |
| 4368629 | Lock system | — | 1983-01-18 |
| 4294091 | Control device for cylinder locks | — | 1981-10-13 |
| 4250725 | Control device | — | 1981-02-17 |