Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641640 | Hard material sintered compact with a nickel- and cobalt-free, nitrogenous steel as binder of the hard phase | Werner Hesse, Hans Wohlfromm, Markus Speidel | 2003-11-04 |
| 6616779 | Workpiece made from a chromium alloy | Peter Ernst, Hannes Speidel, Markus Speidel | 2003-09-09 |
| 6547896 | Process for the production of a material made of a metal alloy | Gian-Carlo Gullo, Markus Speidel, Kurt Steinhoff | 2003-04-15 |