Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780389 | Process for the production of modified carbon black | Alfons Karl, Ralph McIntosh, Werner Kalbitz, Gerd Tauber, Stephan Luedtke | 2004-08-24 |
| 6685769 | Aqueous carbon black dispersions | Alfons Karl, Werner Kalbitz, Gerd Tauber, Andreas Stubbe, Johann Mathias | 2004-02-03 |
| 6569231 | Pigment preparations, a process for preparing pigment preparations and use thereof | Johann Mathias, Alfons Karl, Gerd Tauber | 2003-05-27 |
| 6503311 | Aqueous carbon black dispersions | Alfons Karl, Werner Kalbitz, Gerd Tauber | 2003-01-07 |
| 6451100 | Aqueous carbon black dispersions | Alfons Karl, Werner Kalbitz, Johann Mathias, Gerd Tauber, Andreas Stubbe | 2002-09-17 |
| 6171382 | Aqueous carbon black dispersions | Andreas Stubbe, Jurgen Leimann, Alfons Karl | 2001-01-09 |