| Patents for C09B 45 - Complex metal compounds of azo dyes (1,560) |
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| 06/27/1978 | US4097231 Metal-containing polypropylene dyed with monoazo 1-aryl-3-alkyl-5-pyrazolones |
| 05/30/1978 | US4092478 Triphendioxazine triazinyl dyes having phosphonic acid groups |
| 05/30/1978 | US4092308 4-Sulphomethyl substituted hydroxypyridone azo dyestuffs |
| 05/30/1978 | US4092307 Copper, nickel, cobalt or chromium |
| 05/23/1978 | US4091021 Azo dyestuffs |
| 04/25/1978 | US4086223 Asymmetrical 1:2-chromium complex azo dyestuffs |
| 04/18/1978 | US4085097 Process for the manufacture of chromium complexes from metallizable azo or azo methine dyes |
| 04/11/1978 | US4083839 Unsymmetrical mono sulfo containing 1:2 azo, azo chromium complex dyes |
| 04/11/1978 | US4083681 Compositions of metal complexes of disazo acid dyes stabilized with amino ethers |
| 03/21/1978 | USRE29585 Heavy metal complexes of azo dyestuffs containing a 2-amino-3-hydroxypyridine as coupling component |
| 03/07/1978 | US4077953 Tri-dentate metal complex azo pigments |
| 01/10/1978 | US4068085 Yellow and red on polyesters and acrylics |
| 01/10/1978 | US4067864 Fiber-reactive 2-hydroxy-pyrid-6-on-(3)-yl azo dyestuffs |
| 11/15/1977 | US4058516 Sulfo group-containing azo compounds having a tetrazo component radical derived from an optionally substituted 3,8-diaminodibenzofuran |
| 11/15/1977 | US4058515 Metallized phenyl-azo-naphthol compounds |
| 11/15/1977 | US4058514 Asymmetric 1:2 chromium complexes of monoazo compounds having 1-aryl-3-methyl-pyrazolone-5 coupling components |
| 10/25/1977 | US4055567 Acetalization, reduction, acid hydrolysis |
| 10/11/1977 | US4053462 Unsymmetrical phenyl azo naphthyl chromium complex dyes |
| 10/04/1977 | US4052376 Mixed chromiferous complex derived from two different aryl-azo-pyrazolone dyestuff |
| 10/04/1977 | US4052375 Water-soluble trisazosulfonated dyestuff derived from 2-aminophenol-4-sulfonic acid, resorcinol, 4,4'-diaminobenzanilide and m-aminophenol |
| 10/04/1977 | US4052374 Unsymmetrical 1:2-chromium complexes containing an azo compound and an azomethine compound |
| 09/27/1977 | US4051123 Sulfonic-acid-group containing disazo dyestuffs |
| 09/27/1977 | US4051116 Assymmetrical 1:2 cobalt complexes of metallizable monoazo compounds having one sulfo group per complex |
| 08/30/1977 | US4045424 Salt of a sulfonic acid substituted 1:2 metal complex dye with a basic dye and an amine |
| 08/30/1977 | US4045423 Monoazo dyes |
| 08/02/1977 | US4039523 Yellow |
| 07/12/1977 | US4035401 Intermediates for photographic dyes |
| 07/05/1977 | US4033942 Chromium complex dye, including azo and azo methine dye compounds |
| 07/05/1977 | US4033716 Impregnation, heat treatment, aftertreatment |
| 06/14/1977 | US4029643 Chromium containing azo dyes |
| 04/26/1977 | US4019857 Process for the coloration of hydrophobic chemical fibers by metalliferous dyestuffs of cationic character |
| 04/12/1977 | US4017477 3-Halogeno-6-hydroxy-pyridone-(2) azo dyestuffs |
| 03/22/1977 | US4013630 Wool, silk, polyamides, leather |
| 03/15/1977 | US4012369 Monoazo chromiferous complex dyestuffs derived from naphthyl-azo-naphthalene, and process for their preparation |
| 03/01/1977 | US4010150 Red copper complexes of disazo compounds containing triazine groups |
| 02/15/1977 | US4008211 Betainic azo dyestuffs containing cobalt in complex union with a colorless, tridentate ligand |
| 01/25/1977 | US4005067 Process for the synthesis of nitrite ion-containing 1:1 complexes of cobalt and metallizable monoazo or azomethine compounds and such complexes |
| 01/25/1977 | US4005066 Isotridecylammonium salts of chromium or cobalt 1:2 complex azo dyes |
| 01/25/1977 | US4005065 Unsymmetrical phenyl azo naphthyl chromium complex dyes |
| 01/04/1977 | US4001205 Water-soluble, fiber-reactive phenylazodihydroxy, methyl, cyanopyridine dyestuffs |
| 01/04/1977 | US4001203 Heavy metal complexes of azo dyestuffs containing a heterocyclic diazo component and the residue of 5-halogeno-2,3-dihydrozypyridine as coupling component |
| 01/04/1977 | US4000965 Metal complex dyestuffs |
| 11/30/1976 | US3994906 3-Sulphoalkyl-6-hydroxy-pyrid-(2)-ones |
| 11/23/1976 | US3993637 Chelatable triazolylazo-N-alkyl(cycloalkyl)acylacetamide dyes |
| 10/19/1976 | US3987023 Azo pigment metal complexes |
| 09/28/1976 | US3983101 Water-soluble polyazo compound derived from 4-4-diaminobenzanilide |
| 08/31/1976 | US3978037 Polyamides |
| 08/17/1976 | US3975369 2:1 Metal complexes of 2,2',4'-trihydroxy-3,5-dinitroazobenzene bound to a diphenylamine through an azo bridge |
| 07/27/1976 | US3971739 Tri or tetradentate metal azo pigment complexes |
| 07/27/1976 | US3971738 Heavy metal complexes of azo compounds containing a halogeno-2,3-dihydroxy pyridine coupling component |
| 07/20/1976 | US3970616 Synthesis of chrome-complexed dye developers in the presence of weakly basic anion exchange resins |
| 07/20/1976 | US3970615 Unsymmetrical mono-sulfo containing chromium complexes of azo dyes |
| 06/29/1976 | US3966900 Insecticides |
| 06/29/1976 | US3966703 Asymmetrical frisazo dyestuffs derived from diazotized 2,7-diamino-carbazole |
| 05/18/1976 | US3957747 6-hydroxypyrid-2-one azo dyestuffs |
| 05/11/1976 | US3956263 Monoazo, fiber-reactive |
| 03/09/1976 | US3943122 Polyazo compounds containing benzhydrol as a component |
| 03/02/1976 | US3941765 Process for the manufacture of symmetric 1:2 chromium complexes of azo dyes |
| 02/17/1976 | US3939140 Process for the preparation of a dyestuff consisting substantially of only unsymmetrical 1:2-chromium complex azo dyestuffs |
| 01/20/1976 | US3933785 Azo compounds |