Inventor

Raphael K. Van Poucke

Inventor

Berchem, BE

Overview

25→

Patents

1976–1997

Patent span

Physics

Primary field (CPC G)

Patents· 25 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Cprimary

G03CPhotosensitive materials for photographic purposes50%

C07DHeterocyclic compounds29%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

C07CAcyclic or carbocyclic compounds6%

B41FPrinting machines or presses2%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%

PatentTitleYear

5,688,959'Photographic color elements'1997 5,030,544'Photographic elements comprising thiazolyl couplers capable of forming infrared-absorbing dyes for integral sound track'1991 4,458,011'Ballasted compounds and photographic elements containing such compounds'1984 4,450,223'Diffusion transfer material and process'1984 4,430,421'Method of dispersing photographic adjuvants in hydrophilic colloid compositions'1984 4,430,422'Method of dispersing photographic adjuvants in a hydrophilic colloid composition'1984 4,342,825'Photographic elements containing cyan-forming color couplers'1982 4,341,864'Photographic elements containing cyan-forming couplers'1982 4,340,664'Copolymer latex and photographic silver halide materials containing such latex'1982 4,230,870'Novel photographic color couplers'1980 4,201,584'Silver halide elements containing yellow forming color couplers for silver halide photography'1980 4,131,735'Preparation of .alpha.-acylacetamides using tetramethyl guanidine condensing agent'1978 4,130,427'Silver halide emulsion containing two-equivalent color couplers for yellow'1978 4,128,427'Silver halide emulsions containing polymeric color couplers'1978 4,123,281'Photographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursors'1978 4,080,504'Novel photographic color coupling compounds'1978 4,075,022'Aqueous dispersions of photographic ingredients'1978 4,062,683'Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplers'1977 4,061,498'Photographic material containing 2-acyl-2-pyrazolin-5-on-couplers'1977 4,032,347'2-Equivalent acylacetamide yellow forming couplers with 2,6-dioxo-7-purinyl coupling off group'1977 4,021,445'Preparation of 4-monohalo-2-pyrazolin-5-on-compounds'1977 4,000,156'Preparation of 4-methyl-2-pyrazolin-5-ones'1976 3,966,475'Photographic silver halide emulsions containing acylacetanilide color couplers'1976 3,947,272'Silver halide emulsions containing 2-pyrazolon-5-one photographic colour couplers'1976 3,930,861'Silver halide emulsions containing 3-anilino-2-pyrazolin-5-one color couplers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1997Patents assigned to AGFA GEVAERT NV (24)· patent assignee history

1976–1997Based in Berchem, BE· patent location history

1978Patents assigned to POUCKE RAPHAEL KAREL VAN (1)· patent assignee history

1978Patents assigned to VUGT JAAK PIETER VAN (1)· patent assignee history

1978Patents assigned to WIGNSBERGHE LEO AUGUS (1)· patent assignee history

1978Patents assigned to ZINZEN AGNES MARIA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AGFA GEVAERT NV	24	1976–1997
POUCKE RAPHAEL KAREL VAN	1	1978
VUGT JAAK PIETER VAN	1	1978
WIGNSBERGHE LEO AUGUS	1	1978
ZINZEN AGNES MARIA	1	1978

Locations

Location	Patents	Span
Berchem, BE	25	1976–1997