Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Chemistry
Class Information
Number: 534/831
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Exactly two azo groups attached indirectly to each other by nonionic bonding > Plural benzene rings bonded directly to each azo group
Description: Compounds in which plural benzene rings are bonded directly to each azo group.










Sub-classes under this class:

Class Number Class Name Patents
534/832 At least one of the benzene rings is part of a bicyclo ring system 71


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
3963418 Yellow disazo acid dye solution Jun. 15, 1976
3960831 Disazo dyestuffs containing amino azo benzene sulfonic acid and phenolic or naphtholic couplers Jun. 1, 1976
3958930 Deep-dyed nylon fiber and dyed styling yarn May. 25, 1976
3944540 Precipitation of organic dyes and dye intermediates in the presence of finely divided polytetrafluoroethylene Mar. 16, 1976
3932378 Sulfonated disazo dyestuffs containing an ether group Jan. 13, 1976
3932376 Sulfo phenyl-azo-sulro phenyl-azo-alkoxy-diphenyl compounds Jan. 13, 1976
3930793 Process for the dyeing of synthetic fiber materials from organic solvents Jan. 6, 1976

1 2 3










 
 
  Recently Added Patents
In-vehicle communication system and method of operation
Scale information for drawing annotations
Disposable and tamper-resistant RFID lock
Method and apparatus for representing sensory effects and computer readable recording medium storing user sensory preference metadata
Transfer of digital data through an isolation
Dye-sensitized solar cell, dye-sensitized solar cell module, and coating liquid for forming electrolyte layer
Antenna device and wireless communication apparatus
  Randomly Featured Patents
Processing of categorized product information
Field effect transistor
Video compression for multicast environments using spatial scalability and simulcast coding
Portable parking meter device and method of operating same
Method for the preparation of a coated solid medicament
Apparatus for self-recording a compact disk reproduced signal on a video tape in a video cassette recorder/compact disk player complex system
Roof and a method of providing a building with a roof
Method of making a mushroom-shaped gate electrode of semiconductor device
Data processor having an output terminal with selectable output impedances
Process for sealing reagent ribbons