Issued Patents All Time
Showing 26–50 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540793 | Coupler for use in oxidative hair dyeing | Mu-lll Lim, Linas R. Stasaitis | 2003-04-01 |
| 6521761 | Primary intermediates for oxidative coloration of hair | Mu-Ill Lim | 2003-02-18 |
| 6461391 | Primary intermediates for oxidative coloration of hair | Mu-III Lim | 2002-10-08 |
| 6409773 | Coupler for use in oxidative hair dyeing | Mu-Ill Lim, Margaret Popp | 2002-06-25 |
| 6342079 | Primary intermediate for use in oxidative hair dyeing | Mu-Ill Lim, Linas R. Stasaitis | 2002-01-29 |
| 6228130 | Primary intermediate in oxidative hair dyeing | Mu-Ill Lim, Linas R. Stasaitis, Michael Wong | 2001-05-08 |
| 6200353 | Coupler for use in oxidative hair dyeing | Mu-Ill Lim, Linas R. Stasaitis | 2001-03-13 |
| 6074438 | Hair dyeing compositions containing 2-chloro- and 2,6-dichloro-4-aminophenol and phenylpyrazolones | Mu-Ill Lim, Linas R. Stasaitis | 2000-06-13 |
| 6045590 | Storage stable 2-methyl-1-naphthol couplers | Mu-Ill Lim, Linas R. Stasaitis, John D. O'Donoghue | 2000-04-04 |
| 5993491 | Oxidative hair dye compositions and methods containing 1-(4-aminophenyl)-2-pyrrolidinemethanols | Mu-Ill Lim, Margaret Popp | 1999-11-30 |
| 5980584 | Substituted p-aminophenol, process of preparation and use in dyeing hair | Mu-III Lim, Linas R. Stasaitis, Michael Wong | 1999-11-09 |
| 5961666 | Hair dye compositions containing 3-substituted-4-aminophenols and 2-substituted-1-naphthols | Mu-Ill Lim, James S. Anderson | 1999-10-05 |
| 5876464 | Hair dyeing with N-(4-aminophenyl) prolineamide, couplers, and oxidizing agents | Mu-Ill Lim, Margaret Popp | 1999-03-02 |
| 5865854 | BIS-(2-4-diaminophenoxy) benzenes and their use as coupling components in oxidative hair coloring compositions and methods | Mu-III Lim, Linas R. Stasaitis | 1999-02-02 |
| 5849042 | Hair dye compositions containing 2,3 dialkyl-4-aminophenol and a 2-alkyl-1-naphthol | Mu-Ill Lim | 1998-12-15 |
| 5672180 | Storage stable 2-methyl-1-naphthol couplers | Mu-Ill Lim, Linas R. Stasaitis, John D. O'Donoghue | 1997-09-30 |
| 5670698 | Synthesis of 1-acetoxy-2-methylnaphthalene | Mu-Ill Lim, Linas R. Stasaitis, James S. Anderson | 1997-09-23 |
| 5540738 | Oxidative hair coloring composition and process for dyeing human keratinous fibers | Alexander Chan, David Chang | 1996-07-30 |
| 5529583 | Storage stable 2-methyl-1-naphthol couplers | Mu-Ill Lim, Linas R. Stasaitis, John D. O'Donoghue | 1996-06-25 |
| 5486619 | Method of producing DAI from DOPA, using one reaction vessel | Gottfried Wenke, Mu-Ill Lim, Linas R. Stasaitis | 1996-01-23 |
| 5486629 | Direct dyes having a quaternary center with a long aliphatic chain | Alexander Chan | 1996-01-23 |
| 5360930 | Direct dyes having a quaternary center with a long aliphatic chain | Alexander Chan | 1994-11-01 |
| 5344463 | Hair dye compositions and methods utilizing 2-substituted-1-naphthol couplers | Alexander Chan, Mu-Ill Lim, Richard DeMarco | 1994-09-06 |
| 5314505 | Aminoan thraquinone dyes having a quaternary center with a long aliphatic chain | Alexander Chan | 1994-05-24 |
| 5298029 | Nitrophenylenediamine dyes having a quaternary center with a long aliphatic chain | Alexander Chan | 1994-03-29 |