G03C 7/30523
Phenols or naphtols couplers
Official title: {Phenols or naphtols couplers}
G03C7/30523 (Phenols or naphtols couplers) appears on 67 US grants and 2 published applications in this corpus.
Search patents in G03C- Granted patents
- 67
- Published applications
- 2
- Assignees
- 13
- Inventors
- 116
- Latest grant
- 12 May 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Silver halide color photosensitive material12 May 2009US 7,531,298 B2FUJIFILM Corporation
- Photographic material with improved development inhibitor releases13 Feb 2007US 7,175,975 B2Eastman Kodak Company
- Silver halide photographic material and image formation method9 Apr 2002US 6,368,780 B1Fuji Photo Film Co., Ltd.
- Photographic element, compound, and process26 Jun 2001US 6,251,575 B1Eastman Kodak Company
- Silver halide photographic element containing improved cyan dye-forming phenolic coupler1 Aug 2000US 6,096,494 AEastman Kodak Company
Most cited
By later US patents
- Light-sensitive silver halide color photographic material80US 4,482,629 AKonishiroku Photo Industry Co., Ltd. · 1984
- Silver halide color photographic material31US 4,948,716 AFuji Photo Film Co., Ltd. · 1990
- Cyan dye-forming couplers and photographic materials containing same26US 4,775,616 AEastman Kodak Company · 1988
- Photographic material and process comprising wash-out naphtholic coupler22US 5,151,343 AEastman Kodak Company · 1992
- Cyan dye-forming couplers and photographic materials containing same21US 4,849,328 AEastman Kodak Company · 1989