Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602302 | Substituted 1,4 diaminobenzene compounds and oxidation dye precursor compositions containing same | Hans-Juergen Braun | 2003-08-05 |
| 6600050 | Diaminopyrazole derivatives and dyes containing said compounds | Hans-Juergen Braun | 2003-07-29 |
| 6592631 | p-Aminophenol derivative compounds and dye compositions containing same | Hans-Juergen Braun | 2003-07-15 |
| 6500213 | Oxidizing hair coloring agents containing 2,5-diamino-1-phenylbenzene derivatives and novel 2,5-diamino-1-phenylbenzene derivatives | Hans-Juergen Braun | 2002-12-31 |
| 6461388 | Diaminobenzene derivative compounds and dye compositions containing same | Laurence Descloux | 2002-10-08 |
| 6436152 | Substituted 2-aminoalky-1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same | Hans-Juergen Braun | 2002-08-20 |
| 6231622 | Dye compositions, especially for dyeing hair, containing indane derivative compounds | Laurence Descloux | 2001-05-15 |
| 6203909 | Composite pigment | — | 2001-03-20 |
| 6132475 | Diaminobenzene derivative compounds and dye compositions containing same | Hans-Juergen Braun | 2000-10-17 |
| 6042620 | p-diaminobenzene derivative compounds and dye compositions containing same | Hans-Juergen Braun | 2000-03-28 |
| 5968242 | Colourant-loaded molecular sieve | Wolfgang Holderich, Nadja Rohrlich | 1999-10-19 |
| 5641350 | Organic pigments coated with metal phosphate complexes and amines | Philippe Bugnon | 1997-06-24 |
| 5522925 | Organic pigments coated with Zr or Ti phosphate complexes | Philippe Bugnon | 1996-06-04 |
| 5389141 | Stabilization of pyrrolopyrrole pigments | — | 1995-02-14 |
| 5378276 | Diketopyrrolopyrroles containing nitroxyl groups | Gary Wooden | 1995-01-03 |
| 5348580 | Stabilization of organic pigments | — | 1994-09-20 |
| 5346545 | Stabilization | — | 1994-09-13 |