Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7931696 | Cationic dyes | Beate Fröhling, Dominique Kauffmann | 2011-04-26 |
| 7828858 | Mixture of sulfide dyes | Christian Cremer, Beate Fröhling, Olof Wallquist | 2010-11-09 |
| 7811335 | Styryl sulfide dyes | Beate Fröhling, Dominique Kauffmann | 2010-10-12 |
| 7806940 | Cationic oligomeric azo dyes | Beate Fröhling, Dominique Kauffmann | 2010-10-05 |
| 7803197 | Thiol derivative dyes | Beate Fröhling, Dominique Kauffmann | 2010-09-28 |
| 7794509 | Tricationic dyes | Christian Cremer, Olof Wallquist, Kishor Ramachandra Nivalkar | 2010-09-14 |
| 7785375 | Pyrido thiazinium dyes | Beate Fröhling, Dominique Kauffmann | 2010-08-31 |
| 7771490 | Dyes containing a thiol group | Beate Fröhling, Dominique Kauffmann | 2010-08-10 |
| 7704284 | Xanthene dyes | Beate Fröhling, Dominique Kauffmann | 2010-04-27 |
| 7563289 | Thiol dyes | Beate Fröhling, Achim Bührer | 2009-07-21 |
| 7482438 | Cationic imidazolazo dyes containing a 2,5-diaminophenyl moiety | Thomas Sauder, Dominique Kauffmann, Beate Fröhling | 2009-01-27 |
| 7476260 | Disulfide dyes, composition comprising them and method of dyeing hair | Beate Fröhling, Dominique Kauffmann | 2009-01-13 |
| 7307155 | Cationic direct dyes | Beate Fröhling | 2007-12-11 |
| 7258702 | Yellow cationic dyes for dyeing of organic material | Beate Fröhling, Julia Hauser | 2007-08-21 |
| 7232467 | Method of coloring porous material | Jean-Marie Adam, Taher Yousaf, Beate Fröhling | 2007-06-19 |
| 7229479 | Method of coloring porous material | Beate Fröhling | 2007-06-12 |
| 7223295 | Method of coloring porous material | Beate Fröhling, Dominique Kauffmann | 2007-05-29 |
| 7166710 | Cationic dimeric dyes | Beate Fröhling | 2007-01-23 |
| 7166711 | Cationic dyes | Beate Fröhling | 2007-01-23 |
| 7105500 | Process for the antimicrobial treatment of fiber materials | Jianwen Mao, Albert Stehlin, Dietmar Ochs | 2006-09-12 |
| 7091358 | Cationic substituted hydrazone dyes | Beate Fröhling | 2006-08-15 |
| 7071366 | Processes for obtaining (-)-guaiol and the use thereof | Peter Fankhauser, Gerd Heinemann, William McGilvray | 2006-07-04 |
| 7045608 | Process for the preparation of cationic azo compounds | Julia Hauser | 2006-05-16 |
| 6274761 | Process for the preparation of sulphonated distyryl-biphenyl compounds | Julia Volkel, Peter Rohringer, Roger Wolfgang Basler, Brigitte Gerhild Sereinig | 2001-08-14 |
| 6194606 | Intermediates | Bernd Siebenhaar, Bruno Casagrande | 2001-02-27 |