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Class Information
Number: 534/806
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Exactly four azo groups attached indirectly to each other by nonionic bonding
Description: Compounds in which exactly four azo groups are attached indirectly to each other by nonionic bonding.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7503967 |
Azo compound, ink composition and colored article |
Mar. 17, 2009 |
| 7462228 |
Water-base black ink composition and colored product |
Dec. 9, 2008 |
| 7427319 |
Azo compound, ink composition, and colored object |
Sep. 23, 2008 |
| RE39866 |
Nonpeptide insulin receptor agonists |
Oct. 2, 2007 |
| RE38531 |
Tetrakisazo dyes, their production and use |
Jun. 8, 2004 |
| 6699976 |
Polyazo compound or salt thereof and dye-based polarization film containing the same |
Mar. 2, 2004 |
| 6399752 |
Polyazo compound or salt thereof and dye-based polarization film containing the same |
Jun. 4, 2002 |
| 6346609 |
Cationic azo-dyes |
Feb. 12, 2002 |
| 6140477 |
Near-infrared ray absorbing polyazo compound |
Oct. 31, 2000 |
| 6043349 |
Tetrakisazo dyes, their production and use |
Mar. 28, 2000 |
| 5973125 |
Macroazo compound, a process for its production, a macroazo initiator, and a process for its use |
Oct. 26, 1999 |
| 5668260 |
Tetrakisazo Compounds, the method of preparation thereof and the process of pyeing |
Sep. 16, 1997 |
| 5659020 |
Tetrakisazo compound and a polarizing film containing the same |
Aug. 19, 1997 |
| 5646257 |
Azodyestuffs, their preparation and their use |
Jul. 8, 1997 |
| 5616696 |
Azo dyes having utility for ink jet printers |
Apr. 1, 1997 |
| 5597387 |
Water-soluble polyazo dyestuffs |
Jan. 28, 1997 |
| 5549853 |
Linked azo dyes |
Aug. 27, 1996 |
| 5530105 |
Tetraskisazo compound and ink containing the compound |
Jun. 25, 1996 |
| 5340504 |
Light-polarizing films containing dichroic dyes |
Aug. 23, 1994 |
| 5225545 |
Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component |
Jul. 6, 1993 |
| 5190585 |
Production of pigment compositions |
Mar. 2, 1993 |
| 5145953 |
Monomers of biscyclobutarenes bridged by at least one azo linkage |
Sep. 8, 1992 |
| 4978747 |
Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamine |
Dec. 18, 1990 |
| 4971876 |
Photoconductor for electrophotography |
Nov. 20, 1990 |
| 4882249 |
Tetrakisazo photoconductive composition and electrophotographic photoreceptor using the same |
Nov. 21, 1989 |
| 4875903 |
Monoazo compounds containing a 2-sulfophenyl diazo component radical and a 1-hydroxy-naphthalene-sulfonic or disulfonic acid coupling component radical and two substituted 1,3,5-triazine rings |
Oct. 24, 1989 |
| 4841037 |
Amino sulfonaphtholtrisazo compounds and recording liquids containing the same |
Jun. 20, 1989 |
| 4808503 |
Electrophotographic receptors with charge generating azo-substituted tetraphenyl-thiophene or thiophene 1,1-dioxide |
Feb. 28, 1989 |
| 4804411 |
Recording liquid |
Feb. 14, 1989 |
| 4758659 |
Hexakisazo dyes |
Jul. 19, 1988 |
| 4629672 |
Light-sensitive composition having a tetrakisazo compound |
Dec. 16, 1986 |
| 4594410 |
Azo compounds containing both sulfo groups and basic or cationic groups which compounds are in metal-free or 1:1 metal complex form |
Jun. 10, 1986 |
| 4485042 |
Dyestuff containing at least three azo bridges |
Nov. 27, 1984 |
| 4401369 |
Class of dichroic dyes for use with liquid crystals |
Aug. 30, 1983 |
| 4395288 |
Liquid recording medium |
Jul. 26, 1983 |
| 4339240 |
Color changing polyacetylenic compounds |
Jul. 13, 1982 |
| 4308163 |
Novel yellow azo dyes and dichroic liquid crystal composition made therewith |
Dec. 29, 1981 |
| 4308162 |
Novel yellow azo dyes and dichroic liquid crystal compositions made therewith |
Dec. 29, 1981 |
| 4308161 |
Novel yellow azo dyes and dichroic liquid crystal compositions made therewith |
Dec. 29, 1981 |
| 4308164 |
Novel yellow azo dyes and dichroic liquid crystal composition made therewith |
Dec. 29, 1981 |
| 4295889 |
Recording liquid composition |
Oct. 20, 1981 |
| 4279814 |
Salicyl phenyl naphthyl trisazo di and trisulfonic developed direct black dyes |
Jul. 21, 1981 |
| 4088642 |
Compounds having both peroxy and aliphatic azo groups |
May. 9, 1978 |
| 4081437 |
Water soluble polyazo dyestuffs |
Mar. 28, 1978 |
| 4003885 |
Tetrakisazo compounds having a 1-hydroxy-2-(4'-(2"-sulfoanilino)phenylazo)-3,6-disulfo-7-(optionally 2'-substituted phenylazo)-8-aminonaphthalene middle component |
Jan. 18, 1977 |
| 3949015 |
Internally plasticized poly(vinyl chloride) |
Apr. 6, 1976 |
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