Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10151133 | Sliding-door assembly | Jens Johann Grosse | 2018-12-11 |
| 6327881 | Locking device | Daniel Grundler | 2001-12-11 |
| 6266981 | Lock, in particular mortise lock for an exterior door | Julius M. von Resch, Walter Renz, Daniel Grundler | 2001-07-31 |