Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6361083 | Screw joint for pipes | Franz-Josef Riesselmann | 2002-03-26 |
| 6322108 | Pipe fitting | Franz-Josef Riesselmann | 2001-11-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6361083 | Screw joint for pipes | Franz-Josef Riesselmann | 2002-03-26 |
| 6322108 | Pipe fitting | Franz-Josef Riesselmann | 2001-11-27 |