Inventor

WALD ROLAND

FR31 patents

⚠️ This page may combine multiple inventors who share the name “WALD ROLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WALD ROLAND

SANDOZ LTD

Dyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups linked through bridging radicals containing at least two nitrogen atoms to chloro-1,3,5-triazinyl groups

Metal-free sulfo group-free basis disazo and trisazo compounds containing two different 6-hydroxypyrid-2-one coupling component radicals

The use of metal-free sulfo group free basic disazo compounds containing two identical 6-hydroxypyrid-2-one coupling component radicals for producing colored paper

Phthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl group

Dyes containing two phthalocyanine groups linked by a radical containing two quaternized nitrogen atoms

Metal-free disazo and polyazo compounds having at least one 6-hydroxypyrid-2-one coupling component radical linked to a 1-amino- or hydroxy-3-amino- or hydroxybenzene coupling component radical and metal complexes thereof

Sulfo group-containing metal phlhalocyanine azo compound having a 6-hydroxypyrid-2-one coupling component radicals having a fiber-reactive group

Use of metal-free azo _compounds having at least one _6-hydroxypyrid-2-one _coupling component radical and metal _complexes thereof for dyeing _substrates and substrates dyed therewith

Azo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates therefor

Dyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive groups

Phthalocyanine basic dyestuffs

2-Aralkoxy-anthraquinone dyestuffs

Fibre-reactive monoazo copper complexes containing a halo substituted pyrimidine substituent

Fibre-reactive copper-complex formazan compounds which contain a difluoropyrimidinyl group

Azo compounds containing two 6-hydroxypyrid-2-one coupling component radicals the nitrogen atoms of which are linked by a biscationic radical

Dyes containing 6-hydroxypyrid-2-one groups the 1-positions of which contain substituted 1,3,5-triazinyl or pyrimidyl-piperazino or -piperazinium groups linked through bridging radicals and intermediates therefor

Fibre-reactive monoazonaphthyl dyestuffs

Sulpho group-containing anthraquinone dyestuffs

Anthraquinone dyes and method of use

Anthraquinone compounds and process for dyeing therewith

Fibre-reactive disazo dyestuffs

CLARIANT FINANCE BVI LTD

Aluminum phthalocyanine reactive dyes

Fibre-reactive monoazo dyestuffs

Fiber-reactive mono-azo dyes

Fibre-reactive azo dyestuffs containing a halo substituted pyrimidine substituent

Fibre-reactive dyestuffs

Trichromatic dyeing process and dye mixtures used therein

Asymmetric triphenylenedioxazine compounds

EMERSON ENERGY SYSTEMS AB

Zero-voltage-switch snubber circuit

(unassigned)

Sulfonamido-phthalocyanine azo fibre-reactive dyestuffs containing a heterocyclic fibre-reactive group

CLARIANT FINANCE BV LIMITED

Fibre-reactive dyestuffs