Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10787769 | Fluorescent whitening agents and mixtures thereof | Marco Hafermann, Bernd Hauschel, Theo Lansing, Michael Kraemer, Robert Peekhaus | 2020-09-29 |
| 8920605 | Fluorescent whitening agent compositions | Andrei Tauber, Michael Kraemer, Gunter Klug | 2014-12-30 |
| 8696867 | Disulfo-type fluorescent whitening agents | Andrei Tauber, Michael Kraemer, Guenter Klug, Theo Lansing, Marco Hafermann | 2014-04-15 |
| 8696868 | Disulfo-type fluorescent whitening agent compositions | Andrei Tauber, Michael Kraemer, Guenter Klug | 2014-04-15 |
| 8608907 | Fluorescent whitening agent compositions | Michael Kraemer, Andrei Tauber, Gunter Klug | 2013-12-17 |
| 8354041 | Composition and process for whitening paper | Michael Kraemer, Andrei Tauber, Gunter Klug | 2013-01-15 |
| 7608168 | Alkanolammonium-containing triazinyl flavonate whiteners | Heinz Giesecke | 2009-10-27 |
| 7258815 | Use of brighteners for the preparation of coating slips | Karl-Heinz Drenker, Heinz Giesecke, Bernd Hauschel, Reiner Gottschalk, Claudia Hundertmark | 2007-08-21 |
| 6339117 | Whitened polymers and the use thereof in coating slips for coating substrates | Udo Eckstein, Siegfried Korte, Ulrich Feldhues, Hans Geiger, Thomas Roick +1 more | 2002-01-15 |