Inventor · disambiguated record
Raphael K. Van Poucke
Also filed as: VAN POUCKE RAPHAEL K · VAN POUCKE RAPHAEL KAREL
25 granted patents·204 citations·filing 1974–1991
96Inventor score
Top patents by PatentIndex Score
25 records- 0193US4130427ASilver halide emulsion containing two-equivalent color couplers for yellowAGFA GEVAERT NV·Filed 1977·Granted Dec 19, 1978·25 cites·5 claims
- 0286US5030544APhotographic elements comprising thiazolyl couplers capable of forming infrared-absorbing dyes for integral sound trackAGFA GEVAERT NV·Filed 1985·Granted Jul 9, 1991·22 cites·8 claims
- 0383US4128427ASilver halide emulsions containing polymeric color couplersAGFA GEVAERT NV·Filed 1977·Granted Dec 5, 1978·15 cites·7 claims
- 0480US4131735APreparation of α-acylacetamides using tetramethyl guanidine condensing agentAGFA GEVAERT NV·Filed 1975·Granted Dec 26, 1978·13 cites·7 claims
- 0579US4342825APhotographic elements containing cyan-forming color couplersAGFA GEVAERT NV·Filed 1981·Granted Aug 3, 1982·17 cites·5 claims
- 0677US4123281APhotographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursorsAGFA GEVAERT NV·Filed 1976·Granted Oct 31, 1978·9 cites·8 claims
- 0773US4450223ADiffusion transfer material and processAGFA GEVAERT NV·Filed 1983·Granted May 22, 1984·12 cites·14 claims
- 0872US4430421AMethod of dispersing photographic adjuvants in hydrophilic colloid compositionsAGFA GEVAERT NV·Filed 1982·Granted Feb 7, 1984·14 cites·11 claims
- 0972US4430422AMethod of dispersing photographic adjuvants in a hydrophilic colloid compositionAGFA GEVAERT NV·Filed 1982·Granted Feb 7, 1984·13 cites·11 claims
- 1070US4340664ACopolymer latex and photographic silver halide materials containing such latexAGFA GEVAERT NV·Filed 1980·Granted Jul 20, 1982·26 cites·10 claims
- 1162US4032347A2-equivalent acylacetamide yellow forming couplers with 2,6-dioxo-7-purinyl coupling off groupAGFA GEVAERT NV·Filed 1975·Granted Jun 28, 1977·8 cites·15 claims
- 1258US4341864APhotographic elements containing cyan-forming couplersAGFA GEVAERT NV·Filed 1981·Granted Jul 27, 1982·5 cites·6 claims
- 1355US3930861ASilver halide emulsions containing 3-anilino-2-pyrazolin-5-one color couplersAGFA GEVAERT NV·Filed 1974·Granted Jan 6, 1976·4 cites·10 claims
- 1452US4062683APhotographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplersAGFA GEVAERT NV·Filed 1976·Granted Dec 13, 1977·5 cites·5 claims
- 1551US5688959APhotographic color elementsAGFA GEVAERT NV·Filed 1991·Granted Nov 18, 1997·4 cites·3 claims
- 1646US4201584ASilver halide elements containing yellow forming color couplers for silver halide photographyAGFA GEVAERT NV·Filed 1978·Granted May 6, 1980·3 cites·8 claims
- 1738US4061498APhotographic material containing 2-acyl-2-pyrazolin-5-on-couplersAGFA GEVAERT NV·Filed 1976·Granted Dec 6, 1977·4 cites·2 claims
- 1832US4458011ABallasted compounds and photographic elements containing such compoundsAGFA GEVAERT NV·Filed 1982·Granted Jul 3, 1984·1 cites·5 claims
- 1932US4230870ANovel photographic color couplersAGFA GEVAERT NV·Filed 1976·Granted Oct 28, 1980·0 cites·6 claims
- 2032US4000156APreparation of 4-methyl-2-pyrazolin-5-onesAGFA GEVAERT NV·Filed 1975·Granted Dec 28, 1976·0 cites·10 claims
- 2129US3947272ASilver halide emulsions containing 2-pyrazolon-5-one photographic colour couplersAGFA GEVAERT NV·Filed 1974·Granted Mar 30, 1976·1 cites·13 claims
- 2227US4080504ANovel photographic color coupling compoundsAGFA GEVAERT NV·Filed 1976·Granted Mar 21, 1978·0 cites·3 claims
- 2327US4021445APreparation of 4-monohalo-2-pyrazolin-5-on-compoundsAGFA GEVAERT NV·Filed 1975·Granted May 3, 1977·0 cites·7 claims
- 2427US3966475APhotographic silver halide emulsions containing acylacetanilide color couplersAGFA GEVAERT NV·Filed 1974·Granted Jun 29, 1976·1 cites·6 claims
- 2522US4075022AAqueous dispersions of photographic ingredientsWIGNSBERGHE LEO AUGUS·Filed 1976·Granted Feb 21, 1978·2 cites·25 claims
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