G03C 1/067
Additives for high contrast images, other than hydrazine compounds
Official title: {Additives for high contrast images, other than hydrazine compounds}
G03C1/067 (Additives for high contrast images, other than hydrazine compounds) appears on 79 US grants and 1 published applications in this corpus.
Search patents in G03C- Granted patents
- 79
- Published applications
- 1
- Assignees
- 14
- Inventors
- 142
- Latest grant
- 1 Jul 2003
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Ionic liquids as addenda in photothermographic systems1 Jul 2003US 6,586,166 B1Eastman Kodak Company
- Lightsensitive silver halide photographic emulsion, silver halide photographic lightsensitive material containing the same, and method of enhancing sensitivity of lightsensitive silver halide photographic emulsion8 Apr 2003US 6,544,725 B2Fuji Photo Film Co., Ltd.
- Silver halide photographic light-sensitive material and processing method thereof1 Oct 2002US 6,458,522 B1Fuji Photo Film Co., Ltd.
- Method of processing a photographic high contrast silver halide material16 Apr 2002US 6,372,417 B1Eastman Kodak Company
- Silver halide light sensitive photographic material and image forming method by the use thereof15 Jan 2002US 6,338,941 B1
Most cited
By later US patents
- Silver halide photographic materials56US 5,122,445 AFuji Photo Film Co., Ltd. · 1992
- Light-sensitive silver halide photographic material29US 5,004,669 AKonica Corporation · 1991
- Silver halide emulsions and photographic elements containing adsorbable alkynyl substituted heterocyclic quaternary ammonium salts20US 4,471,044 AEastman Kodak Company · 1984
- Silver halide photographic light-sensitive material improved on pinhole production14US 4,978,602 AKonica Corporation · 1990
- Silver halide photographic light-sensitive material and process for producing silver halide photographic emulsion12US 4,346,167 AFuji Photo Film Co., Ltd. · 1982