Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5827467 | Method and apparatus for forming flanges on tubes | Hans-Peter Ruppert | 1998-10-27 |
| 5369973 | Process and device for bending tubes which can be deformed or bent | — | 1994-12-06 |
| 5370424 | Pipe connection | — | 1994-12-06 |
| 5286072 | Pipe connection for high pressure application | Hans-Peter Ruppert | 1994-02-15 |