Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Metal complex dyestuffs, processes for their preparation and their use for dyeing nitrogen-containing materials

Metal complex dyestuffs, processes for their preparation and their use for dyeing nitrogen-containing materials

US Patent 4424152 · Granted Jan 3, 1984

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Disazo dyes2001
Disazo dyestuffs for dyeing cellulosic materials2000
Process for dyeing cellulosic materials with disazo dyestuffs1999
Polymeric dyestuffs and their use in inks for ink jet printing processes1996
Dyestuffs and their use in inks for ink-jet printing processes1996
1:2 chromium complex dyestuffs1996
Liquid dyestuff preparations1995
Unsymmetrical 1:2 chromium complex dyestuffs1993
Process for the dyeing of leather with anionic dyes and polyaminoamide resin as 1991
Asymmetrical 1:2 chromium complexes derived from azo and azomethine dyes1985
Azo dyestuffs1982
Iron complex azo dyestuffs1981