Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-pyrid-2-one coupling component

Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-pyrid-2-one coupling component

US Patent 5616695 · Granted Apr 1, 1997

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Equipment for engaging a safety braking device for a lift cage2006
Brake arresting device with adaptable brake force for an elevator2006
Anthraquinone dyes, preparation thereof and use thereof2005
Fast-writable and precision-writable high-capacity optical storage media2005
Braking device for an elevator2004
Process for the treatment of cellulose fibres2001
Process for dyeing or printing and novel reactive dyes2000
Crosslinking of cellulosic fiber materials2000
Process for treating cellulose fibres2000
Pigment dyeing and pigment printing process1999
Reactive dyes, containing two triazinyl radicals which are bridged via an alipha1998
Radiation-induced fixation of dyes1997