Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435218 | Pipe with crack stopper feature, and process of protecting a pipe against propagation of cracks | Hans-Georg Hillenbrand, Ingo von Hagen, Gerhard Knauf, Johannes Arndt | 2002-08-20 |