Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Dyeing formulations of mixtures of red disperse dyes for the washfast dyeing of polyester fibers or mixtures thereof with cellulose fibers: benzo-di-furanone and azo dyes

US Patent 4872882 · Granted Oct 10, 1989

Assignee

Inventors

View full patent text on Google Patents →