Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7015167 | Raw material with a high content of aluminum oxide, and method of manufacturing the raw material | Gerhard Merker, Jurgen Steyer | 2006-03-21 |
| 6593262 | Porosifying, solidification-accelerating additive for binding agent building materials, and process of producing | Gerhard Merker | 2003-07-15 |
| 6132574 | Bottom lining for electrolytic cells and process for its manufacture | Gerhard Merker | 2000-10-17 |
| 5994252 | Process for producing spherical metal-oxide powder particles | Friedhelm Bramsiepe | 1999-11-30 |
| 5856254 | Spherical metal-oxide powder particles and process for their manufacture | Friedhelm Bramsiepe | 1999-01-05 |
| 5413985 | Partially crystalline, transitional aluminum oxides, methods for their synthesis and use for obtaining molded articles, which consist essentially of gamma Al.sub.2 O.sub.3 | Roland Thome, Hubertus Schmidt, Ulrich Bollmann, Rudiger Lange, Seigfried Engels | 1995-05-09 |