Inventor

HEIDENREICH HOLGER

DE18 patents

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

HEIDENREICH HOLGER

BAYER AG

Removal of heavy metal ions from aqueous media

Method for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicators

Azo dyestuffs and liquid crystal material containing azo dyestuffs

Acaricidal agents based on azomethines of 2,3-diaminomaleic acid nitrile

Pest-combating agents based on derivatives of 2,3-diaminomaleonitrile

Benzimidazolo-quinazolines

3-thienylazo dyes with a gamma-acid coupler

Process for the isolation of 2-naphthylamine-1,5-disulphonic acid

MILES INC

Indicators for the detection of thiol groups

Indicator compounds, method of their preparation and use of those compounds in an iron assay system

Indicators for the detection of thiol groups

Indicators for the detection of thiol groups

As-triazine compounds

AGFA GEVAERT AG

Chelatable 4-thienyl imidazole azo dyes, their use in color photographic recording material

Color photographic recording material

Color photographic recording material containing a thiophene azo dye releaser for cyan dyes

Color photographic recording material containing dye-releasers releasing 6-arylazo-2-amino-3-pyridinol dyes which are chelatable with metal ions

HEIDENREICH HOLGER

Damping element with connecting substance