G03C 5/42
Reducing
Official title: Reducing; Intensifying {(using couplers G03C7/30)}
G03C5/42 (Reducing) appears on 23 US grants and 0 published applications in this corpus.
Search patents in G03C- Granted patents
- 23
- Published applications
- 0
- Assignees
- 14
- Inventors
- 60
- Latest grant
- 26 Oct 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for the selective silvering of photographic materials26 Oct 1999US 5,972,575 A
- Processing method for silver halide color photographic light-sensitive material9 Dec 1997US 5,695,915 AKonica Corporation
- Reducer and reduction method for silver images5 Sep 1995US 5,447,821 AFuji Photo Film Co., Ltd.
- Silver image bleaching solution and process3 May 1994US 5,308,746 AEastman Kodak Company
- Reducer and method for conducting dot etching processing of silver image18 Aug 1992US 5,139,920 AFuji Photo Film Co., Ltd.
No published applications in this class yet.
Most cited
By later US patents
- Process for making indicia bearing anodized article30US 3,953,625 AHorizons Incorporated · 1976
- Low coating weight silver halide element and process14US 4,047,956 AE. I. Du Pont de Nemours and Company · 1977
- Method for processing light-sensitive silver halide photographic materials13US 4,113,490 AKonishiroku Photo Industry Co., Ltd. · 1978
- Method of treating waste liquids from photographic processings6US 3,931,004 AFuji Photo Film Co., Ltd. · 1976
- Method of forming photographic line and half-tone images5US 4,113,489 AFuji Photo Film Co., Ltd. · 1978