Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and contains no sulfonamido or amino groups

US Patent 4537955 · Granted Aug 27, 1985

Assignee

Inventors

View full patent text on Google Patents →