Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618899 | Door closer and method of producing a door closer | Horst Tillmann, Günter Gollnick | 2003-09-16 |
| 6553238 | Apparatus and method for the remote diagnosis, remote monitoring and remote initialization of automatic doors, door systems and garage doors | Willi Ressel, Ulrich Theile | 2003-04-22 |
| 6510586 | Door closer | — | 2003-01-28 |