Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7160576 | Method and device for blacking components | Hansjakob Drissen, Winfried Grafen, Walter Ooster | 2007-01-09 |
| 7108756 | Method for heat-treating work pieces made of temperature-resistant steels | Nils Lippmann | 2006-09-19 |
| 6406560 | Method for the thermal treatment of metal | Bernd Edenhofer, Michael Lohrmann | 2002-06-18 |
| 6328819 | Method and use of an apparatus for the thermal treatment, in particular nitriding treatment, of metal workpieces | Bernd Edenhofer, Michael Lohrmann | 2001-12-11 |