LandOfFree - US Patents - Listing for Organic compounds -- part of the class 532-570 series,Organic compounds,Azo

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo compounds imparting deep black color a method for dyeing

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo compounds prepared from 4,4',4"-triaminotriphenylamine a

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo compounds useful in producing water-resistant ink compos

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo compounds, and dye compositions containing same

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo compounds, method for dyeing fiber materials, paper or l

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dye and dye composition containing the same

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dye and dye composition containing the same

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dye, and aqueous ink composition containing the same

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dyes

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dyes

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Trisazo dyes containing naphthalene or quinoline units and their

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Tryptanthrine derivatives

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Ultrafiltration process for purification of dyes useful in foods

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Unsymmetrical 1:2 chromium complex dyestuffs

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a d

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Use of amino azoic dyes as markers of oil distillation products

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Use of disazo compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Use of lithium salts of anionic dyes to enhance their...

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

Use of thiazolyl-pyridinium based dyes in optical layers for...