Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491771 | Method of producing round billets | Harald Wehage, Uwe Quitmann, Walter Weischedel | 2002-12-10 |
| 6435218 | Pipe with crack stopper feature, and process of protecting a pipe against propagation of cracks | Hans-Georg Hillenbrand, Gerd Junker, Gerhard Knauf, Johannes Arndt | 2002-08-20 |