G03C 7/32
Colour coupling substances
Official title: Colour coupling substances (G03C7/305, G03C7/388 take precedence; {in combination with other additives or included in a specific colour photographic material G03C7/3003; two-equivalent couplers G03C7/30517})
G03C7/32 (Colour coupling substances) appears on 1,128 US grants and 135 published applications in this corpus.
Search patents in G03C- Granted patents
- 1,128
- Published applications
- 135
- Assignees
- 46
- Inventors
- 928
- Latest grant
- 8 Jul 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 18 | 0 |
| 1978 | 17 | 0 |
| 1979 | 10 | 0 |
| 1980 | 19 | 0 |
| 1981 | 21 | 0 |
| 1982 | 20 | 0 |
| 1983 | 17 | 0 |
| 1984 | 31 | 0 |
| 1985 | 36 | 0 |
| 1986 | 33 | 0 |
| 1987 | 24 | 0 |
| 1988 | 36 | 0 |
| 1989 | 43 | 0 |
| 1990 | 47 | 0 |
| 1991 | 57 | 0 |
| 1992 | 34 | 0 |
| 1993 | 61 | 0 |
| 1994 | 59 | 0 |
| 1995 | 72 | 0 |
| 1996 | 45 | 0 |
| 1997 | 44 | 0 |
| 1998 | 26 | 0 |
| 1999 | 48 | 0 |
| 2000 | 73 | 0 |
| 2001 | 55 | 8 |
| 2002 | 37 | 24 |
| 2003 | 37 | 19 |
| 2004 | 21 | 25 |
| 2005 | 19 | 24 |
| 2006 | 20 | 11 |
| 2007 | 11 | 15 |
| 2008 | 7 | 7 |
| 2009 | 5 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- G03C 7/36Couplers containing compounds with active methylene groups620
- G03C 7/34Couplers containing phenols238
- G03C 7/3225Combination of couplers of different kinds174
- G03C 7/3212Couplers characterised by a group not in coupling site95
- G03C 7/327Macromolecular coupling substances66
- G03C 7/333Coloured coupling substances63
- G03C 7/3244Couplers forming azinic dyes7
- G03C 2007/3257Two-equivalent couplerIndexing code3
Recent patents
- Preparation of polyamides8 Jul 2014US 8,772,438 B2Invista North America S A R L
- Silver halide color photographic light-sensitive material and color image-forming method8 Jun 2010US 7,732,124 B2FUJIFILM Corporation
- Silver halide color photographic light-sensitive material and image forming method30 Mar 2010US 7,687,229 B2FUJIFILM Corporation
- Silver halide color photographic light-sensitive material and color image-forming method3 Nov 2009US 7,611,829 B2FUJIFILM Corporation
- Silver halide photographic material and image forming method using the same22 Sep 2009US 7,592,133 B2FUJIFILM Corporation
- Preparation of polyamides18 Oct 2012US 2012/0264907 A1Invista North America S A R L
- Silver Halide color photographic light-sensitive material and color image-forming method21 May 2009US 2009/0130613 A1FUJIFILM Corporation
- Silver halide photographic material and image forming method using the same30 Oct 2008US 2008/0268385 A1FUJIFILM Corporation
- Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound4 Sep 2008US 2008/0214810 A1
- Silver halide color photographic light-sensitive material15 May 2008US 2008/0113305 A1FUJIFILM Corporation
Most cited
By later US patents
- Photographic imaging system incorporating metadata recording capability108US 6,180,312 B2Eastman Kodak Company · 2001
- Method of forming color image comprising heterocyclic magenta dye-forming coupler72US 4,540,654 AFuji Photo Film Co., Ltd. · 1985
- Method for forming magenta color image69US 4,500,630 AFuji Photo Film Co., Ltd. · 1985
- Compositions for the detection of hydrogen peroxide66US 4,089,747 AEastman Kodak Company · 1978
- Cyan image forming method and silver halide color photographic material containing cyan coupler56US 5,256,526 AFuji Photo Film Co., Ltd. · 1993