Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673468 | Composite material made of two steel cover sheets resistance-welded together and an intermediate layer | Friedrich Behr, Cetin Nazikkol | 2004-01-06 |
| 6369346 | Method for welding a double layer sheet to a jointing sheet | — | 2002-04-09 |