Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025827 | Method and device for connecting a plastic workpiece to a further workpiece | Sergio De Traglia Amancio Filho, Matthias Beyer | 2011-09-27 |
| 7954691 | Method for joining tube plates and tubes as well as friction tool to carry out the method | Arne Roos, Georg Wimmer | 2011-06-07 |
| 7882998 | Method and apparatus of producing a welded connection between the surfaces of two planar workpieces | Arne Roos | 2011-02-08 |