Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803026 | Compacted carbon black pellets | Uwe Hempelmann, Manfred Eitel | 2004-10-12 |
| 6432196 | Process for producing briquetted and pressed granular material and use thereof | Olaf Schmidt-Park, Manfred Eitel, Lothar Steiling | 2002-08-13 |
| 6364223 | Process for producing briquetted and pressed granular material and use thereof | Olaf Schmidt-Park, Manfred Eitel, Lothar Steiling | 2002-04-02 |
| 6350779 | Piece-form calcium formate | Achim Noack, Hanspeter Baumgartner, Alexander Klausener | 2002-02-26 |
| 6241167 | Process for producing briquetted and pressed granular material and use thereof | Olaf Schmidt-Park, Manfred Eitel, Lothar Steiling | 2001-06-05 |
| 6132505 | Inorganic pigment pellets for coloring plastics, lacquers and building materials and a process for the production thereof | Kai Butje, Manfred Eitel | 2000-10-17 |
| 6079644 | Process for producing briquetted and pressed granular material and use thereof | Olaf Schmidt-Park, Manfred Eitel, Lothar Steiling | 2000-06-27 |
| 5961710 | Inorganic pigment granules process for their production and their use | Manfred Eitel, Olaf Schmidt-Park, Kai Butje | 1999-10-05 |
| 5882395 | Process for producing inorganic granules and the use therefor | Lothar Steiling | 1999-03-16 |
| 5837635 | Process for producing mixed oxide powders from deactivated denox catalysts | Jurgen Kischkewitz, Hans-Joachim Schittenhelm, Gunter Lailach, Kai Butje | 1998-11-17 |
| 5797988 | Process for producing briquetted and pressed granular material and use thereof | Olaf Schmidt-Park, Manfred Eitel, Lothar Steiling | 1998-08-25 |
| 5718755 | Preparation and use of iron oxide black pigment granules | Berndt-Ullrich Kohler, Manfred Eitel, Herbert Kunstmann | 1998-02-17 |
| 5634970 | Process for the coloration of organic media | Manfred Eitel | 1997-06-03 |
| 5520340 | Process for the jet milling of inorganic pigments | Bernd Krockert, Peter Kuske | 1996-05-28 |
| 5484481 | Process for the colouration of building materials | Manfred Eitel | 1996-01-16 |
| 5389137 | Process for dyeing asphalt | Manfred Eitel, Gerald Buchner, Peter Kresse, Gunther Teichmann | 1995-02-14 |
| 5322563 | Process for coloring building materials | Karl-Heinz van Bonn, Bernd Krockert | 1994-06-21 |
| 5290352 | Process for the preparation of a pigment suspension | Bernd Krockert | 1994-03-01 |
| 5215583 | Process for coloring building materials | Bernd Krockert | 1993-06-01 |
| 5199986 | Process for coloring building materials | Bernd Krockert, Manfred Eitel, Kurt Schafer, Klaus Rohbock | 1993-04-06 |
| 4921542 | Finely divided iron oxide black pigments, a process for their preparation and their use | Jakob Rademachers, Karl-Werner Ganter, Wolfgang Rambold | 1990-05-01 |
| 4211565 | Iron oxide-based anti-corrosion pigments | Franz Hund, Peter Kresse | 1980-07-08 |
| 4186028 | Fluid pigment suspensions with phosphonocarboxylic acids | Peter Woditsch, Gunther Teichmann, Gunter Lailach, Fritz Rodi | 1980-01-29 |