G03C 7/30517
2-equivalent couplers, i.e. with a substitution on the coupling site being compulsory
Official title: {2-equivalent couplers, i.e. with a substitution on the coupling site being compulsory with the exception of halogen-substitution}
G03C7/30517 (2-equivalent couplers, i.e. with a substitution on the coupling site being compulsory) appears on 349 US grants and 19 published applications in this corpus.
Search patents in G03C- Granted patents
- 349
- Published applications
- 19
- Assignees
- 24
- Inventors
- 426
- Latest grant
- 22 Sep 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 15 | 0 |
| 1981 | 12 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 10 | 0 |
| 1989 | 20 | 0 |
| 1990 | 12 | 0 |
| 1991 | 20 | 0 |
| 1992 | 15 | 0 |
| 1993 | 25 | 0 |
| 1994 | 26 | 0 |
| 1995 | 17 | 0 |
| 1996 | 16 | 0 |
| 1997 | 14 | 0 |
| 1998 | 10 | 0 |
| 1999 | 15 | 0 |
| 2000 | 22 | 0 |
| 2001 | 15 | 1 |
| 2002 | 7 | 4 |
| 2003 | 3 | 4 |
| 2004 | 3 | 4 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 3 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Silver halide photographic material and image forming method using the same22 Sep 2009US 7,592,133 B2FUJIFILM Corporation
- Silver halide color photosensitive material12 May 2009US 7,531,298 B2FUJIFILM Corporation
- Silver halide color photographic light-sensitive material5 May 2009US 7,527,922 B2FUJIFILM Corporation
- Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound29 Apr 2008US 7,365,199 B2FUJIFILM Corporation
- Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound27 Mar 2007US 7,196,194 B2Fuji Photo Film Co., Ltd.
- 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 Material30 Aug 2007US 2007/0202448 A1FUJIFILM Corporation
- Photographic material with improved development inhibitor releasers12 Jan 2006US 2006/0008751 A1Eastman Kodak Company
- Silver halide photosensitive material and method of forming image13 Oct 2005US 2005/0227188 A1
Most cited
By later US patents
- Light-sensitive silver halide color photographic material80US 4,482,629 AKonishiroku Photo Industry Co., Ltd. · 1984
- 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
- Cyan image forming method and silver halide color photographic material containing cyan coupler56US 5,256,526 AFuji Photo Film Co., Ltd. · 1993
- Pyrazolo(1,5-B)-1,2,4-triazole derivatives41US 4,621,046 AFuji Photo Film Co., Ltd. · 1986