Assignee
ILFORD LTD
30 granted patents·384 citations·filing 1973–1996
Top patents by PatentIndex Score
30 records- 0189US5376510AConcentrated photographic developing solutionILFORD LTD·Filed 1993·Granted Dec 27, 1994·21 cites·10 claims
- 0284US5688635AToning of photographic print materialILFORD LTD·Filed 1996·Granted Nov 18, 1997·14 cites·11 claims
- 0384US5142384AHolograms for packaging and display usesILFORD LTD·Filed 1990·Granted Aug 25, 1992·73 cites·8 claims
- 0483US5003386APreparation of a copy hologram with a light modulating array derived from a master hologramILFORD LTD·Filed 1989·Granted Mar 26, 1991·54 cites·9 claims
- 0575US5017469ATwinned emulsions made from silver iodide seed crystals having an aspect ratio of at least 2:1ILFORD LTD·Filed 1989·Granted May 21, 1991·14 cites·18 claims
- 0671US5360701AAntistatic backing for photographic roll filmILFORD LTD·Filed 1993·Granted Nov 1, 1994·49 cites·9 claims
- 0768US5104914APreparation of polymer dispersions and photographic elements containing polymer particlesILFORD LTD·Filed 1990·Granted Apr 14, 1992·7 cites·6 claims
- 0866US4976799AMethod of preparing laminated hologramsILFORD LTD·Filed 1989·Granted Dec 11, 1990·21 cites·6 claims
- 0961US3945584AFilm cassettesILFORD LTD·Filed 1974·Granted Mar 23, 1976·18 cites·31 claims
- 1057US4005926AScanning deviceILFORD LTD·Filed 1974·Granted Feb 1, 1977·21 cites·17 claims
- 1156US5017667APreparation of latexes of color coupler polymersILFORD LTD·Filed 1988·Granted May 21, 1991·10 cites·13 claims
- 1252US5043257AAzo dyes for photographic silver dye bleach materialILFORD LTD·Filed 1989·Granted Aug 27, 1991·4 cites·12 claims
- 1349US5141845AProcess for the spectral sensitization of photographic silver halide emulsions and products thereofILFORD LTD·Filed 1990·Granted Aug 25, 1992·3 cites·7 claims
- 1449US4992346AProduction of hologramsILFORD LTD·Filed 1989·Granted Feb 12, 1991·6 cites·11 claims
- 1547US5210010ASilver halide developing solutionsILFORD LTD·Filed 1992·Granted May 11, 1993·4 cites·12 claims
- 1646US4996141AMonomethine compoundsILFORD LTD·Filed 1989·Granted Feb 26, 1991·3 cites·10 claims
- 1746US3973328APaper material dryerILFORD LTD·Filed 1974·Granted Aug 10, 1976·14 cites·7 claims
- 1844US3946868APackage containing a stack of flexible sheet materialILFORD LTD·Filed 1974·Granted Mar 30, 1976·19 cites·6 claims
- 1941US4019908ASilver halide photographic materialILFORD LTD·Filed 1973·Granted Apr 26, 1977·4 cites·7 claims
- 2038US4989071AMethod of preparing a hologram using readily available light sourcesILFORD LTD·Filed 1989·Granted Jan 29, 1991·7 cites·13 claims
- 2136US4014862AProduction of hardened gelatin layers by the addition of quaternary carbamoyl pyridinium compoundsILFORD LTD·Filed 1973·Granted Mar 29, 1977·1 cites·5 claims
- 2233US4948714AProcessing of photographic silver halide materialsILFORD LTD·Filed 1989·Granted Aug 14, 1990·3 cites·14 claims
- 2332US5770351AProcessing of monochrome photographic silver halide print materialILFORD LTD·Filed 1995·Granted Jun 23, 1998·0 cites·15 claims
- 2432US5358832AFixing bathILFORD LTD·Filed 1993·Granted Oct 25, 1994·2 cites·6 claims
- 2531US4987479AMethod of preparing a color hologram suitable for display purposesILFORD LTD·Filed 1989·Granted Jan 22, 1991·4 cites·14 claims
- 2629US5009991ASilver halide emulsions containing twinned silver halide crystalsILFORD LTD·Filed 1989·Granted Apr 23, 1991·2 cites·22 claims
- 2727US5333026APhotographic material processorILFORD LTD·Filed 1992·Granted Jul 26, 1994·0 cites·3 claims
- 2826US3983301AFilm base materialILFORD LTD·Filed 1974·Granted Sep 28, 1976·4 cites·6 claims
- 2924US4977047AMethod of preparing a hologramILFORD LTD·Filed 1989·Granted Dec 11, 1990·1 cites·17 claims
- 3024US4966440APost-exposure dye treatment in the production of hologramsILFORD LTD·Filed 1989·Granted Oct 30, 1990·1 cites·2 claims
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