Inventor

BERGTHALLER PETER

DE53 patents

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

BERGTHALLER PETER

AGFA GEVAERT AG

Color photographic material containing novel yellow couplers

Photographic recording material with metal complexable, heterocyclic azo dye

Color photographic recording material containing a coupler releasing a photographically active compound

Process for the polymerization of allyl ammonium salts and the resulting products

Inkjet recording material

Color photographic recording material containing a DIR coupler

Photographic silver halide material

Process for hardening photographic gelatin

Process for hardening a photographic material

Photographic silver halide material

Bleaching baths containing bleaching accelerators

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

Monoazo pyridinol dyes chelated or capable of being chelated with metal ions and their use for image production

Use of copolymers in the production of photographic emulsions and photographic materials

Photographic silver halide emulsion

Hardening photographic layers containing silver halide with a 1-sulphonyl-4-amino-pyridinium salt

Color photograhic recording material containing a coupler which releases a photographically active compound

Color photographic material with azo dicyanoimidazole dyes

Production of photographic silver halide emulsion

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

Process for the preparation of 2-mercaptoalkyl-sulphides and 2-mercaptoalkylethers

Process for the hardening of photographic layers utilizing fast acting hardener and polysaccharide

Photographic recording material containing a precursor of a photographically-active compound

Inkjet ink

Color photographic recording material containing a DIR coupler

Method of hardening a protein-containing layer of a silver halide photographic material with an alkyl ester of 1,2-dihydroquinoline-N-carboxylic acid

Photographic silver halide emulsion

Photographic silver halide emulsions

Color photographic recording material containing a coupler which releases a photographically active compound

Photographic material containing a pyridine azo or pyridazine azo cyan dye releasing compound

Color photographic recording material

Photographic recording material with arylazocyanoacetic ester dye releasers

Process for the production of photographic images

Photographic silver halide materials containing sulfur containing polymers

Process of hardening a silver halide photographic material with a 1-carbamoyloxypyridinium salt

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

Photographic recording material containing new azo dyes

Photographic material containing a layer capable of being dyed by organic dyes

Photographic material comprising a layer with Ni complex of 2,2&#39;-bisphenol

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

Color photographic recording material containing a non-diffusible dye releaser from which a complexible azo dye is released during development

Photographic silver halide material

Image-receiving element for the dye diffusion transfer process with metal complex of diazabicyclooctane

Color photographic recording material

AGFA GEVAERT NV

Color photographic silver halide material

Hardeners for photographic materials

AGFA GEVAERT

Photographic silver halide material

Production of silver halide emulsions

AGFA GEVART AG D 51368

Process for the preparation of naphtholic 2-equivalent cyan couplers

AGFA N V

Color photographic print material

Photographic material comprising a layer with Ni complex of 2,2'-bisphenol