Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Thiopheneazo dyes with a coupling component based on M-phenylenediamine

Thiopheneazo dyes with a coupling component based on M-phenylenediamine

US Patent 5145952 · Granted Sep 8, 1992

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Crystal form of an organic fluorescent compound2025
Microparticle composition comprising an organic IR absorbing pigment2025
Naphthalocyanine and phthalocyanine chromophores2025
Polyarylene ether sulfone comprising naphthalic acid anhydride endgroups2021
Crystal form of a dithiolene metal complex2021
Naphthalocyanine derivatives2020
Ga-naphthalocyanine chromophores with short chain alkoxy axial substituents2020
4-oxoquinoline compounds2019
Preparation of polymers comprising at least one benzo[c][1,2,5]thiadiazol-5,6-di2018
Compounds with terminal heteroarylcyanovinylene groups and their use in organic 2018
Double donor functionalisation of the peri-positions of perylene and naphthalene2017
Quinoid rylenedicarboximides as IR absorbers2016