Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6914440 | Welding system and method utilizing a ground integrity monitor | Karl Poll, Peter Usedom | 2005-07-05 |
| 6570120 | Apparatus for resistance welding | Udo Marek, Karl Poll, Axel Heinemann, Norbert Metzen | 2003-05-27 |
| 6072146 | Resistance welding gun with on-board memory | Norbert Metzen, Karl Poll | 2000-06-06 |
| 5015815 | Process and device for regulation of resistance or arc welding processes | Martin Zimmermann | 1991-05-14 |