G03C 1/33
Spot-preventing agents
G03C1/33 (Spot-preventing agents) appears on 6 US grants and 0 published applications in this corpus.
Search patents in G03C- Granted patents
- 6
- Published applications
- 0
- Assignees
- 5
- Inventors
- 17
- Latest grant
- 13 Oct 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Silver halide photographic material13 Oct 1992US 5,155,007 AKonica Corporation
- Method of photographic color development using polyhydroxy compounds, metal ions and sequestering agents4 Dec 1990US 4,975,357 AEastman Kodak Company
- High contrast photographic elements exhibiting reduced pepper fog21 Oct 1986US 4,618,574 AEastman Kodak Company
- Silver halide photographic materials12 Mar 1985US 4,504,577 AFuji Photo Film Co., Ltd.
- Light-sensitive photographic silver halide recording material29 Nov 1983US 4,418,142 AAgfa-Gevaert
No published applications in this class yet.
Most cited
By later US patents
- Method of photographic color development using polyhydroxy compounds, metal ions and sequestering agents9US 4,975,357 AEastman Kodak Company · 1990
- High contrast photographic elements exhibiting reduced pepper fog7US 4,618,574 AEastman Kodak Company · 1986
- Light-sensitive photographic silver halide recording material4US 4,418,142 AAgfa-Gevaert · 1983
- Silver halide film1US 4,340,665 AE. I. Du Pont de Nemours and Company · 1982
- Silver halide photographic materials1US 4,504,577 AFuji Photo Film Co., Ltd. · 1985