G03C 7/344
Naphtholic couplers
Official title: {Naphtholic couplers}
G03C7/344 (Naphtholic couplers) appears on 30 US grants and 10 published applications in this corpus.
Search patents in G03C- Granted patents
- 30
- Published applications
- 10
- Assignees
- 9
- Inventors
- 65
- Latest grant
- 13 Feb 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
By publication year. Applications have been published since 2001.
Recent patents
- Photographic material with improved development inhibitor releases13 Feb 2007US 7,175,975 B2Eastman Kodak Company
- Digital film processing method28 Jun 2005US 6,910,816 B2Eastman Kodak Company
- Digital film processing method30 Nov 2004US 6,824,966 B2Eastman Kodak Company
- Digital film processing method16 Dec 2003US 6,664,034 B2Eastman Kodak Company
- 1-naphthol compound and method for preparing compound having acidic proton using the same20 Aug 2002US 6,437,169 B1Fuji Photo Film Co., Ltd.
- Black and white photothermographic material23 Aug 2007US 2007/0196777 A1FUJIFILM Corporation
- Black and white photothermographic material23 Aug 2007US 2007/0196778 A1FUJIFILM Corporation
- Black and white photothermographic material23 Aug 2007US 2007/0196779 A1FUJIFILM Corporation
- Black and white photothermographic material and image forming method22 Mar 2007US 2007/0065762 A1Fuji Photo Film Co., Ltd.
- Black and white photothermographic material and image forming method1 Feb 2007US 2007/0026348 A1Fuji Photo Film Co., Ltd.
Most cited
By later US patents
- Thiazolyl coupler compositions and photographic elements suited to forming integral sound tracks20US 4,178,183 AEastman Kodak Company · 1979
- Silver halide color photographic light-sensitive material containing novel cyan dye forming coupler16US 4,690,889 AFuji Photo Film Co., Ltd. · 1987
- Photographic elements comprising thiazolyl couplers capable of forming infrared-absorbing dyes for integral sound track15US 5,030,544 AAgfa-Gevaert · 1991
- Phenylsulfamoyl couplers, coupler compositions and photographic elements suited to forming integral sound tracks10US 4,250,251 AEastman Kodak Company · 1981
- Silver halide color photographic light-sensitive material containing cyan coupler and method for use thereof9US 4,957,853 AFuji Photo Film Co., Ltd. · 1990