G03C 1/4853
Polymethine dyes
Official title: {polymethine dyes}
G03C1/4853 (Polymethine dyes) appears on 28 US grants and 1 published applications in this corpus.
Search patents in G03C- Granted patents
- 28
- Published applications
- 1
- Assignees
- 12
- Inventors
- 39
- Latest grant
- 7 Jan 2003
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Light-sensitive silver halide photographic material for forming direct-positive images and method for making same7 Jan 2003US 6,503,697 B2Agfa-Gevaert
- Direct positive type silver halide photographic material comprising a mixture of dyes20 Aug 1996US 5,547,828 AFuji Photo Film Co., Ltd.
- Direct positive silver halide photographic material9 Jul 1996US 5,534,402 AFuji Photo Film Co., Ltd.
- Pre-fogged direct reversal silver halide photographic material26 Mar 1996US 5,501,946 AFuji Photo Film Co., Ltd.
- Direct positive dimethine cyanine dyes containing 1-aryl-2-heteroaryl indole nucleus2 Apr 1991US 5,004,812 AE. I. Du Pont de Nemours and Company
Most cited
By later US patents
- Fogged direct-positive silver halide emulsion containing a cyanine dye having an indole or indolenine nucleus substituted with a benzoyl or a phenylsulfonyl group9US 4,025,347 AMinnesota Mining and Manufacturing Company · 1977
- Offset printing plate9US 4,134,769 AMitsubishi Paper Mills Limited · 1979
- Fogged direct positive silver halide emulsion containing a cyanine dye having at least one benzoxazole or benzothiazole nucleus substituted with halogen atoms8US 4,110,116 AMinnesota Mining and Manufacturing Company · 1978
- Fogged, direct-positive silver halide emulsion optically sensitized with a dye containing a pyrrolo[2,1-b]thiazole nucleus5US 3,941,602 AAgfa-Gevaert · 1976
- Direct positive silver halide photographic emulsions4US 4,599,300 AMitsubishi Paper Mills Limited · 1986