Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6294726 | Silicon with structured oxygen doping, its production and use | Christian Hassler, Wolfgang Koch, Siegfried Thurm, Otwin Breitenstein | 2001-09-25 |
| 5185141 | Process for the production of iron oxide yellow pigments | Bernd Krockert, Helmut Printzen, Hans-Peter Biermann | 1993-02-09 |
| 5108508 | Rutile mixed phase pigment microgranulates, a process for their preparation and their use | Jakob Rademachers, Dieter Rade | 1992-04-28 |
| 5049195 | Color pure iron oxide pigments, a process for their preparation and their use | Wilfried Burow, Karl-Werner Ganter, Gerd-Hermann Schulten | 1991-09-17 |
| 5032377 | Chromium oxide green, a process for its production and its use | Jakob Rademachers | 1991-07-16 |
| 4957562 | Chrome oxide green, a process for its preparation and its use | Jakob Rademachers, Dieter Rade, Gunther Teichmann, Gerhard Trenczek | 1990-09-18 |
| 4911760 | Color pure iron oxide pigments, a process for their preparation | Wilfried Burow, Karl-Werner Ganter, Gerd-Hermann Schulten | 1990-03-27 |