Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8641342 | Stud for stud welding | Frank Drexler, Joachim Schneider | 2014-02-04 |
| 7521647 | Joining device | Alexander Schug | 2009-04-21 |
| 7223934 | Hand welding device, welding apparatus and welding gauge | Bernhard Göbel | 2007-05-29 |