Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs

Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs

US Patent 4578469 · Granted Mar 25, 1986

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Elastic covering material having improved flame retardant properties and product2009
Process for preparing L-tertiary-leucine and L-phosphinothricine by transaminati1999
Process for preparing L-tertiary-leucine and L-phosphinothricine by transaminati1999
Process for preparing pentafluoroethane (R 125)1998
Process for preparing L-tertiary-Leucine and L-phosphinothricine by transaminati1998
Sterilant gas mixture comprising alkylene oxide and 1,1,1,2,3,3,3-heptafluoropro1996
Process for disposing of halons or halon-containing fluorocarbons or chlorofluor1995
Azeotrope-like mixture of 2-propanol and 1H-perfluorohexane1993
Azeotrope-like mixture of methanol and 1H-perfluorohexane1993
Process for the manufacture of foams with the aid of blowing agents containing f1992
Process for producing foams with the aid of fluoroalkanes1992
Process for the production of foams with the aid of branched dodecafluorohexane1992