Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687996 | Molded part made of thermoplastic material | Hans-Werner Steinmetz, Dirk Petry | 1997-11-18 |
| 5601315 | Molded connector for branch connections for a pipeline | Lars Bunger | 1997-02-11 |
| 5255943 | Welding sleeve and method for its manufacture | Friedhelm Keller, Dirk Petry | 1993-10-26 |