| 5860055 |
Process for producing granular material and shaped parts from hard metal materials or cermet materials |
Werner Hesse |
1999-01-12 |
| 5188782 |
Production of preforms from ceramic or metallic fibers |
Johan ter Maat, Hans-Josef Sterzel |
1993-02-23 |
| 4557818 |
Gas-evolving metal electrode |
Hans Roos, Dieter Schlaefer, Hugo Boehn, Heinz Kilthau |
1985-12-10 |
| 4455174 |
Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6 |
Henning Wienand, Werner Ostertag |
1984-06-19 |
| 4422921 |
Bipolar electrodes with graphite as the carrier and their production |
Hans Roos, Hugo Boehn, Dieter Schlaefer |
1983-12-27 |
| 4411761 |
Spinel-containing electrode and process for its production |
Hans Roos, Hugo Boehn, Volker Kiener, Gerd Wunsch |
1983-10-25 |
| 4344987 |
Preparation of flaky mica pigments coated with metal oxides, and use of these pigments |
Werner Ostertag, Gustav Bock |
1982-08-17 |
| 4328042 |
Preparation of metallic pigments having a metallic luster |
Werner Ostertag, Gustav Bock |
1982-05-04 |
