| Patents for C09B 13 - Oxyketone dyes (49) |
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| 02/11/2015 | CN102159651B 有关电润湿元件的改进 Improvements on electrowetting element |
| 12/09/2014 | US8907110 Benzodioxepin-3-one compounds as dyes or as fluorescent emitters |
| 08/28/2014 | US20140242665 Phenyl Xanthene Dyes |
| 08/21/2014 | US20140234238 Benzodioxepin-3-one compounds as dyes or as fluorescent emitters |
| 02/13/2014 | WO2014024074A1 Boron containing perylene monoimides, process for their production, their use as building blocks for production of perylene monoimide derivatives, monoimide derivatives and their use in dye-sensitized solar cells |
| 08/17/2011 | CN102159651A Improvements in relation to electrowetting elements |
| 07/27/2011 | EP2346946A2 Improvements in relation to electrowetting elements |
| 03/30/2011 | EP2300407A2 Novel quinones, syntheses and uses thereof |
| 09/23/2010 | WO2010031860A3 Improvements in relation to electrowetting elements |
| 03/09/2010 | CA2568931C Phase change inks containing fischer-tropsch waxes |
| 02/18/2010 | WO2009141562A3 Novel quinones, syntheses and uses thereof |
| 01/12/2010 | CA2568936C Phase change inks |
| 11/26/2009 | WO2009141562A2 Novel quinones, syntheses and uses thereof |
| 10/10/2007 | CN100341948C Heavier halogen atom subsituted squa glucoside dye, its producing process and it's used as sensitizing agent in the therapy of optical dynamic and industrial application |
| 06/21/2007 | DE102006057130A1 Recording layer for high density optical recording medium, e.g. optical disc, includes organic dye |
| 05/24/2007 | DE102006000931A1 Recording layer for high density optical recording medium, e.g. optical disc, includes organic dye |
| 06/21/2006 | CN1791644A Method of enhancing fluorescence |
| 07/31/2002 | CN1361205A Heavier halogen atom subsituted squa glucoside dye, its producing process and it's used as sensitizing agent in the therapy of optical dynamic and industrial application |
| 02/08/2000 | US6022379 Hair dye |
| 01/06/1999 | CN1041514C Preparation of benzoquinones by oxidation of phenols |
| 09/02/1998 | EP0861830A1 Use of 1,4-naphthoquinone and 1,4-dihydroxynaphthalene pyrrole derivatives for dyeing keratinous material, compounds and compositions containing them |
| 01/27/1998 | US5712416 Oxidation and condensation of phenol to form benzoquinone in the presence of oxygen transfer catalysts of iron, manganese and chromium dihydrodibenzotetraza(14)annulenes |
| 06/11/1997 | EP0500942B1 Process for producing black colorant, cosmetic containing said colorant, and application thereof |
| 08/13/1996 | US5545235 Thermal transfer of pyridone dyes |
| 01/02/1996 | CA2066277C Process for production of black coloring material and cosmetics containing said black coloring material and use thereof |
| 11/08/1995 | EP0680834A1 Thermotransfer of pyridone dyes |
| 09/27/1995 | CN1109046A The preparation of benzoquinones by oxidation of phenols |
| 06/28/1995 | EP0659727A1 Process for the preparation of benzoquinones by oxidation of phenoles |
| 10/25/1994 | US5358538 Process for production of black coloring material and cosmetics containing said black coloring material and use thereof |
| 09/02/1992 | EP0500942A1 Process for producing black colorant, cosmetic containing said colorant, and application thereof |
| 04/28/1992 | US5108903 Reducible compounds which provide leuco dyes for analytical compositions, elements and methods of using same |
| 01/12/1992 | WO1992001022A1 Process for producing black colorant, cosmetic containing said colorant, and application thereof |
| 12/24/1991 | CA1293452C Process for hair dyeing with hydroxyquinonic dyes and metallic salts |
| 11/20/1990 | US4971596 Process for dyeing hair with hydroxyquinone dyes and metal salts |
| 01/10/1990 | EP0350254A2 Reducible compounds which provide leuco dyes, and analytical compositions, elements and methods containing same |
| 12/19/1989 | US4888026 Use of hydroxynaphthoquinones for dyeing human keratin fibres |
| 09/19/1989 | US4867751 Use of benzoquinones for the direct dyeing of keratin fibres |
| 08/12/1986 | US4605419 5,8-dihydroxy naphthalene-1,4-dione derivative and a hair dye composition containing the same |
| 12/17/1985 | CA1198121A1 Liquid crystal dielectrics, new dyestuffs useful therein, processes for their preparation, and electrooptical display elements based thereon |
| 04/30/1985 | CA1186231A1 Hydroxynaphtoquinones for dyeing human keratinic fibres, process for dyeing and tinctorial composition so applied |
| 02/12/1985 | US4499004 Liquid crystal dielectrics, new dyestuffs useful therein, processes for their preparation, and electrooptical display elements based thereon |
| 09/18/1984 | US4472292 Liquid crystalline dielectric, new dichroitic naphthoquinone dyestuffs and electro-optical indicator element |
| 08/10/1983 | EP0085335A2 Liquid crystal dielectric, new dyestuffs, process for their preparation and electro-optic display element |
| 01/12/1983 | EP0069257A1 Liquid crystal dielectric and electrooptical display device |
| 11/18/1981 | EP0039807A2 Hair-dyeing compositions |
| 09/13/1977 | US4048173 Plastics |
| 08/16/1977 | US4042591 Pigments, disperse dyes |
| 07/05/1977 | US4033963 Naphthoquinone derivatives |
| 01/06/1976 | US3931163 Naphthoquinone derivatives |