Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991825 | Injection device | Herbert Wagner, Dirk Stein | 1991-02-12 |
| 4783060 | Immersion lance | Hans D. Hofmann, Dirk Stein | 1988-11-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991825 | Injection device | Herbert Wagner, Dirk Stein | 1991-02-12 |
| 4783060 | Immersion lance | Hans D. Hofmann, Dirk Stein | 1988-11-08 |