Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6047731 | Pressure fitting, in particular a pressure relief and safety valve | Hermann-Josef Conrads, Erwin Laurer, Ullrich Preiss | 2000-04-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6047731 | Pressure fitting, in particular a pressure relief and safety valve | Hermann-Josef Conrads, Erwin Laurer, Ullrich Preiss | 2000-04-11 |