Inventor · disambiguated record
Alexander Chan
Also filed as: CHAN ALEXANDER · CHAN ALEXANDER C
33 granted patents·1 pending application·885 citations·filing 1988–2024
98Inventor score
Files withCLAIROL INC18REVLON CONSUMER PROD CORP6UNILEVER HOME & PERSONAL CARE6ATI TECHNOLOGIES INC1CURTIS HELENE IND INC1
Top patents by PatentIndex Score
34 records- 0195US6306182B1Polymeric dye compounds and compositions and methods for coloring hairREVLON CONSUMER PROD CORP·Filed 2000·Granted Oct 23, 2001·66 cites·20 claims
- 0295US6238653B1Liquid crystalline peroxide compositions and methods for coloring and/or bleaching hairREVLON CONSUMER PROD CORP·Filed 1999·Granted May 29, 2001·141 cites·19 claims
- 0391US7041142B2Two step hair coloring compositions delivering deeper, long-lasting colorUNILEVER HOME & PERSONAL CARE·Filed 2004·Granted May 9, 2006·42 cites·15 claims
- 0489US6143286AMethod for improving the fade resistance of hair and related compositionsREVLON CONSUMER PROD CORP·Filed 1998·Granted Nov 7, 2000·86 cites·9 claims
- 0589US5169403ADirect dyes having a quaternary center with a long aliphatic chainCLAIROL INC·Filed 1991·Granted Dec 8, 1992·23 cites·20 claims
- 0688US6596035B2One step method and compositions for simultaneously coloring and highlighting hairREVLON CONSUMER PROD CORP·Filed 2001·Granted Jul 22, 2003·42 cites·16 claims
- 0786US5486629ADirect dyes having a quaternary center with a long aliphatic chainCLAIROL INC·Filed 1994·Granted Jan 23, 1996·25 cites·1 claims
- 0881US6599330B2Method for coloring hair with removable hair colorREVLON CONSUMER PROD CORP·Filed 2002·Granted Jul 29, 2003·10 cites·20 claims
- 0980US7066968B2Efficient two-step method of coloring and lightening hair with less damageUNILEVER HOME & PERSONAL CARE·Filed 2004·Granted Jun 27, 2006·11 cites·16 claims
- 1078US6743264B2Two step permanent coloring of hairUNILEVER HOME & PERSONAL CARE·Filed 2002·Granted Jun 1, 2004·12 cites·21 claims
- 1177US5651960AMethod and composition for removing semi-permanent color from human hairCURTIS HELENE IND INC·Filed 1995·Granted Jul 29, 1997·52 cites·10 claims
- 1276US5474578AErasable hair dyeing processCLAIROL INC·Filed 1994·Granted Dec 12, 1995·58 cites·11 claims
- 1372US7060111B2Method for providing more vibrant, natural and long-lasting color to hairUNILEVER HOME & PERSONAL CARE·Filed 2003·Granted Jun 13, 2006·3 cites·14 claims
- 1472US6315989B1Water in oil microemulsion peroxide compositions for use in coloring hair and related methodsREVLON CONSUMER PROD CORP·Filed 1999·Granted Nov 13, 2001·37 cites·20 claims
- 1571US7074244B2Hair dyeing method including an aligning stepUNILEVER HOME & PERSONAL CARE·Filed 2003·Granted Jul 11, 2006·3 cites·19 claims
- 1670US5344463AHair dye compositions and methods utilizing 2-substituted-1-naphthol couplersCLAIROL INC·Filed 1993·Granted Sep 6, 1994·40 cites·14 claims
- 1769US5135543AQuaternized monoalkylenediamine nitrobenzene compounds and their use as dyes for keratinaceous fibersCLAIROL INC·Filed 1991·Granted Aug 4, 1992·37 cites·19 claims
- 1866US5183941AHair dye coupler compoundsCLAIROL INC·Filed 1990·Granted Feb 2, 1993·10 cites·9 claims
- 1965US4975092AProcesses for coloring and/or conditioning hairCLAIROL INC·Filed 1989·Granted Dec 4, 1990·25 cites·10 claims
- 2065US2025069731A1Processing of medical diagnostic data to obtain coding informationROYAL BANK OF CANADA·Filed 2024·Application pending·0 cites
- 2163US5368610AUse of metal salts and chelates together with chlorites as oxidants in hair coloringCLAIROL INC·Filed 1993·Granted Nov 29, 1994·29 cites·25 claims
- 2262US4968497ASkin tanning composition and methodCLAIROL INC·Filed 1988·Granted Nov 6, 1990·24 cites·27 claims
- 2360US5420362ASynthesis of 2-methyl-1-naphtholCLAIROL INC·Filed 1993·Granted May 30, 1995·7 cites·10 claims
- 2459US5314505AAminoan thraquinone dyes having a quaternary center with a long aliphatic chainCLAIROL INC·Filed 1992·Granted May 24, 1994·16 cites·8 claims
- 2558US5073173ADye couplersCLAIROL INC·Filed 1990·Granted Dec 17, 1991·6 cites·6 claims
- 2657US5256823AQuarternized monoalkylenediamine nitrobenzene compounds and their use as dyes for keratinaceous fibersCLAIROL INC·Filed 1992·Granted Oct 26, 1993·21 cites·10 claims
- 2756US5540738AOxidative hair coloring composition and process for dyeing human keratinous fibersFiled 1995·Granted Jul 30, 1996·20 cites·14 claims
- 2853US5298029ANitrophenylenediamine dyes having a quaternary center with a long aliphatic chainCLAIROL INC·Filed 1992·Granted Mar 29, 1994·12 cites·12 claims
- 2948US5360930ADirect dyes having a quaternary center with a long aliphatic chainCLAIROL INC·Filed 1994·Granted Nov 1, 1994·9 cites·8 claims
- 3047US6758866B2Enhanced color deposition for hair with sequestering agentsUNILEVER HOME & PERSONAL CARE·Filed 2001·Granted Jul 6, 2004·0 cites·12 claims
- 3147US5037640ASkin coloring and sunscreening compositions containing indoles and M-nitro alkoxybenzenesCLAIROL INC·Filed 1989·Granted Aug 6, 1991·12 cites·10 claims
- 3237US7336318B2Synthetic insertion of clear codes during video program changesATI TECHNOLOGIES INC·Filed 2001·Granted Feb 26, 2008·0 cites·29 claims
- 3337US5049381ASkin coloring compositions containing indoles and quaternary ammonium saltsCLAIROL INC·Filed 1989·Granted Sep 17, 1991·6 cites·18 claims
- 3430US5199955AM-phenylenediamine coupler and oxidative dye compositions containing sameCLAIROL INC·Filed 1992·Granted Apr 6, 1993·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →