G03C 7/3018
Using cobalt compounds
Official title: {using cobalt compounds}
G03C7/3018 (Using cobalt compounds) appears on 9 US grants and 0 published applications in this corpus.
Search patents in G03C- Granted patents
- 9
- Published applications
- 0
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 19 May 1981
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Color photographic light-sensitive material19 May 1981US 4,268,617 AFuji Photo Film Co., Ltd.
- Method for forming photographic images30 Oct 1979US 4,172,726 AFuji Photo Film Co., Ltd.
- Prevention of fog formation in color photographic process3 Apr 1979US 4,147,546 AFuji Photo Film Co., Ltd.
- Color photographic process18 Apr 1978US 4,084,969 AFuji Photo Film Co., Ltd.
- Photographic elements containing anionic organic acids8 Nov 1977US 4,057,428 AEastman Kodak Company
No published applications in this class yet.
Most cited
By later US patents
- Processing compositions comprising inert transition metal complex oxidizing agents and reducing agents7US 3,989,526 AEastman Kodak Company · 1976
- Color photographic process5US 4,084,969 AFuji Photo Film Co., Ltd. · 1978
- Method for forming photographic images5US 4,172,726 AFuji Photo Film Co., Ltd. · 1979
- Regeneration of photographic processing solutions4US 4,040,834 AFuji Photo Film Co., Ltd. · 1977
- Imagewise hardening with inert transition metal complex oxidizing agents3US 3,970,458 AEastman Kodak Company · 1976