Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5911766 | Lock cylinder | Kurt Lieb, Stephan Chevalier, Martin Richter | 1999-06-15 |
| 5509603 | Mailbox mounting bracket | — | 1996-04-23 |
| 5461754 | Door closer with a detent for holding a door open and the detent therefor | Horst Tillmann, Dietrich Jentsch, Thomas Warschewitz, Dieter Sichelschmidt, Bernd Winkler | 1995-10-31 |
| 5311642 | Door closer with a detent for holding a door open and the detent therefor | Horst Tillmann, Dietrich Jentsch, Thomas Warschewitz, Dieter Sichelschmidt, Bernd Winkler | 1994-05-17 |