Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9421629 | Method of producing a material joint, and hollow section connection | Siegfried Fecke | 2016-08-23 |
| 8418345 | Method for producing a hollow profile joint and a hollow profile | Siegfried Fecke, Michael Wibbeke, Jürgen Krogmeier, Armin Zuber | 2013-04-16 |
| 8002167 | Method of producing a tube connection, and tube connection | Armin Zuber, Michael Wibbeke | 2011-08-23 |