| Patents for C09B 23 - Methine or polymethine dyes, e.g. cyanine dyes (4,654) |
|---|
| 04/28/1992 | US5108902 Microorganism detection; medical diagnosis |
| 04/21/1992 | US5107063 Aqueous soluble infrared antihalation dyes |
| 04/15/1992 | EP0480276A2 Carbonylaminostyrene derivatives as recording material |
| 04/07/1992 | US5102781 Blue spectral sensitizers for non-tabular silver halide elements |
| 03/31/1992 | US5101035 Thermal printing, improved migration properties, color intensity, water and chemical resistance |
| 03/31/1992 | US5101032 Sensitizers for photopolymerization and electrography |
| 03/25/1992 | EP0476928A1 Light-sensitive silver halide photographic material |
| 03/24/1992 | US5098820 Coumarin dyes for photographic films |
| 03/24/1992 | US5098810 Electrophotographic photoreceptors |
| 03/11/1992 | EP0474191A1 Dye and its solution |
| 03/11/1992 | EP0474047A1 Silver halide emulsion |
| 03/03/1992 | US5093492 Methine dyes and optical recording medium containing same |
| 02/25/1992 | US5091298 Sensitizing dyes for photographic materials |
| 02/11/1992 | US5087727 A zulenes containing a urethane group |
| 02/11/1992 | US5087704 Cyanine compounds |
| 02/04/1992 | US5086239 Nonlinear optical elements containing j-aggregates of aromatic dyes |
| 02/04/1992 | US5085909 Squarylium compounds and optical information recording medium using the same |
| 01/28/1992 | US5084592 Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium |
| 01/22/1992 | EP0467370A1 Sensitizing dyes for photographic materials |
| 01/22/1992 | EP0467155A1 Blue spectral sensitizers for non-tabular silver halide elements |
| 01/10/1992 | CA2046144A1 Blue spectral sensitizers for non-tabular silver halide elements |
| 01/08/1992 | EP0465078A1 Infra-red sensitive photographic materials |
| 01/08/1992 | EP0464543A1 Polymethine dyes |
| 01/07/1992 | US5079365 Triazolopyridine dyes and thermal transfer of methine dyes |
| 01/07/1992 | US5079139 Silver halide photographic material |
| 01/02/1992 | EP0463357A1 Derivatives of bisstilbene |
| 12/31/1991 | US5077191 Thiazoline or imidazoline dyes for silver halide emulsions |
| 12/31/1991 | US5077163 Electrophotographic photoreceptor |
| 12/31/1991 | US5077162 Charge transparting material of styrel compound |
| 12/30/1991 | CA2045902A1 Infra-red sensitive photographic materials |
| 12/27/1991 | EP0462437A1 New light-polarising films or foils and dyestuffs for their preparation |
| 12/17/1991 | CA2044549A1 New light polarizing films or foils and dyes for their production |
| 12/11/1991 | EP0460616A1 Silver halide photographic material |
| 12/04/1991 | EP0459201A1 Heterocyclic polymethine dyes having carbamate or amide groups and optical recording medium |
| 11/13/1991 | EP0456148A1 Filter dyes for photographic elements |
| 11/12/1991 | US5064702 Quinoxalinepentamethine dyes and optical recording medium containing same |
| 10/31/1991 | DE4012954A1 New amino triazinyl-amino tri:pheno-dioxazine dyestuff cpds. |
| 10/30/1991 | EP0453884A1 Triphendioxazine dyes |
| 10/29/1991 | US5061618 Containing cyanide and azine dyes |
| 10/29/1991 | US5061003 Cover for automobile sun visor mirrors |
| 10/23/1991 | EP0452965A1 Water-soluble methine compound and photographic silver halide emulsion containing the same |
| 10/23/1991 | EP0294461B1 Solid particle dispersion filter dyes for photographic compositions |
| 10/22/1991 | US5059516 Spectrally sensitized to near infared region with cyanine dye, (benz)isothiazole and bromo-nitro substituted alkanol |
| 10/17/1991 | DE4109193A1 Paper coating compsn. fluorescent whitening agent - which is di:sodium bis:di:anilino-triazinyl-amino stilbene di:sulphonate |
| 10/16/1991 | EP0451816A1 Sensitizing dye for photographic materials |
| 10/15/1991 | US5057393 Complexed with cationic dyes |
| 10/09/1991 | EP0450551A1 Solid particle dispersions of filter dyes for photographic elements |
| 10/08/1991 | US5055567 Disperse dyes which are convertible into a thermo-migration fast form |
| 10/08/1991 | US5055387 Sensitizing dye for photographic materials |
| 10/02/1991 | EP0449109A2 Indonaphthol dyes and a process for their thermal transfer |
| 10/01/1991 | US5053506 Novel sulfur-containing merocyanine dyes |
| 09/25/1991 | EP0448389A1 Enamine derivatives and their use in electrophotographic member |
| 09/18/1991 | EP0446845A2 Sensitizing dye for photographic materials |
| 09/10/1991 | US5047311 Panchromatic silver halide photographic element |
| 09/05/1991 | WO1991013382A1 Nonlinear optical elements containing j-aggregates |
| 09/04/1991 | EP0444786A1 Preparation and use of dyes |
| 09/04/1991 | EP0215124B1 Silver halide photographic photo-sensitive material |
| 08/28/1991 | EP0443466A1 Silver halide emulsion and heptamethine cyanine dye |
| 08/23/1991 | CA2036335A1 Silver halide emulsion |
| 08/22/1991 | DE4004612A1 New bi:chromophoric methine and aza-methine dyestuff cpds. and use |
| 08/20/1991 | US5041550 Infra-red sensitizing dyes for silver halide |
| 08/14/1991 | EP0441282A1 Bichromophore methine and azamethine dyestuffs and a process for their transfer |
| 08/06/1991 | US5037714 Photoconductive base, charge generation and charge transfer layers; durability |
| 07/31/1991 | EP0439200A1 Transfer process using methine dyes containing bichromophoric cyano-groups |
| 07/23/1991 | US5034294 Light sensitive multilayer element with electron donors and electron acceptors |
| 07/17/1991 | EP0437282A2 Bichromophore methine dyes containing cyano groups and a process for their transfer |
| 07/17/1991 | EP0437105A1 Intermediates and colorants having primary hydroxyl enriched poly(oxyalkylene) moieties and their preparation |
| 07/16/1991 | US5032479 Charge transport compound |
| 07/16/1991 | CA1286139C Filter dye for photographic element |
| 07/09/1991 | US5030708 Colored polyester compositions |
| 07/03/1991 | EP0435561A2 Silver halide photographic light-sensitive material |
| 07/03/1991 | EP0435136A1 Photographic sensitizing dyes |
| 07/03/1991 | EP0434769A1 Cover for mirrors of sun visors of motor vehicles |
| 06/26/1991 | EP0434026A1 Methine compound |
| 06/25/1991 | US5026905 Fluorescent dyes |
| 06/25/1991 | US5026677 Dyes and dye-donor elements for use in thermal dye sublimation transfer |
| 06/25/1991 | US5026505 Pleochroic dyes with trans=4=substituted cyclohexyl groups; improved display contrast stability |
| 06/18/1991 | US5024699 Leuco dyes and recording materials using the same |
| 06/18/1991 | CA1284998C Filter dyes |
| 06/12/1991 | EP0431425A2 Chromogen enamine compounds, their preparation and use as colour formers |
| 06/11/1991 | CA1284740C Photosensitive materials containing ionic dye compounds as initiators |
| 06/04/1991 | US5021329 Silver halide photographic material containing a dye precursor residue |
| 05/29/1991 | EP0429239A1 Record material utilising a vinyl carbinol or derivative thereof as a chromogenic compound |
| 05/22/1991 | EP0427892A1 Spectrally sensitized silver halide emulsions |
| 05/22/1991 | EP0427867A1 Thermal transfer sheet |
| 05/21/1991 | US5017707 Tetraindolylheptamethine dyestuffs |
| 05/16/1991 | CA2029966A1 Record material utilising a vinyl carbinol or derivative thereof as a chromogenic compound |
| 05/15/1991 | EP0427040A1 Paper-coating compositions comprising whitening agents |
| 05/08/1991 | EP0425976A2 Cycloalkylidene dye-stuffs |
| 05/08/1991 | EP0425932A1 Quinoxaline-pentamethine dyestuffs and optical recording medium containing said new dyestuffs |
| 05/07/1991 | US5013636 Magenta coupler and water soluble dye, films and paper |
| 05/05/1991 | CA2029220A1 Brightener-containing paper-coating compositions |
| 04/23/1991 | US5010190 Cationic compounds |
| 04/16/1991 | US5008401 Cyanine compounds |
| 04/03/1991 | EP0420012A1 Infrared-sensitive photographic element |
| 04/02/1991 | US5004812 Phenyl-pyridyl-indole Intermediates For Desensitizing Dyes |
| 03/27/1991 | EP0419110A1 Methine compound |
| 03/27/1991 | EP0419095A2 Radiation sensitive compositions |
| 03/27/1991 | EP0418291A1 Novel merocyanine dyes |
| 03/27/1991 | CA2025256A1 Infrared-sensitive photographic element |