Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8729418 | Method for repairing a welded connection | Erhard Brueckner, Siegried Guegel | 2014-05-20 |
| 8217295 | Method for producing a welded connection for use in a corrosive environment | Erhard Brückner, Siegfried Gügel | 2012-07-10 |
| 6607119 | Method and apparatus for welding two work pieces | Rainer Bauer, Dieter Pellkofer, Helmar Adams | 2003-08-19 |
| 4617444 | Burner for wig welding | Dieter Pellkofer, Jürgen Böhm, Siegfried Forner | 1986-10-14 |