Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the preparation of linear quinacridones

Process for the preparation of linear quinacridones

US Patent 4758664 · Granted Jul 19, 1988

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Epindolidione pigments2007
Mix-crystal pigments based on perylenetetracarbimides, process for their prepara1992
Substituted polycylic derivatives of the 9-oxo-1,9a,10-triaza-9-hydroanthracene 1991
Pigments and use thereof1991
Process for the preparation of 2-(arylamino)-3-carboxy-9(10H)-acridones1990
Pigments of the quinacridonequinone series, processes for their preparation and 1989
Process for the preparation of arylimides of perylene-3,4,9,10-tetracarboxylic a1989
Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'- d1989
Mix-crystal pigments based on perylenetetracarbimides, process for preparing and1988
Process for preparing high-hiding gamma-modification of unsubstituted linear tra1988
Mix-crystal pigments based on perylenetetracarbimides, process for their prepara1988
Powdered pigments with improved rheological properties, processes for their prep1988