Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656053 | Method for producing orthodontic devices and appliances | Ullrich Trautwein, Kurt Lenz | 1987-04-07 |
| 4619701 | Isolating agent | Martin Spath | 1986-10-28 |
| 4568558 | Method for producing orthodontic devices and appliances | Ullrich Trautwein, Kurt Lenz | 1986-02-04 |