Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › 6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives

6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives

US Patent 7531009 · Granted May 12, 2009

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Aqueous dye dispersions2014
Aqueous solutions of direct dyes2011
1-phenoxy-2-propanol as a formulating aid for dyes2011
Aqueous dye solutions2011
Disazo dyes, and copper complexes thereof, for dyeing paper2006
Process for preparing solutions of anionic organic compounds2005
Process for the preparation of solutions of anionic organic compounds2004