G03C 7/3244
Couplers forming azinic dyes
Official title: {Couplers forming azinic dyes; Specific developers therefor}
G03C7/3244 (Couplers forming azinic dyes) appears on 7 US grants and 0 published applications in this corpus.
Search patents in G03C- Granted patents
- 7
- Published applications
- 0
- Assignees
- 1
- Inventors
- 4
- Latest grant
- 12 Nov 1985
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Dye precursors and their use in photographic materials and processes12 Nov 1985US 4,552,980 AEastman Kodak Company
- Color-forming sulfonamidodiphenylamine dye precursor that produces phenazine dye26 Mar 1985US 4,507,479 AEastman Kodak Company
- Color-forming sulfonamidodiphenylamines and corresponding sulfonimide dyes12 Feb 1985US 4,499,304 AEastman Kodak Company
- Dye precursors and their use in photographic materials and processes25 Oct 1983US 4,411,984 AEastman Kodak Company
- Color-forming para-sulfonamidodiphenylamine dye precursor and sulfonimide dye in photographic material and process28 Jun 1983US 4,390,606 AEastman Kodak Company
No published applications in this class yet.
Most cited
By later US patents
- Color-forming sulfonamidodiphenylamines and corresponding sulfonimide dyes21US 4,499,304 AEastman Kodak Company · 1985
- Photographic materials and processes comprising color-forming sulfonamidodiphenylamine dye precursors and corresponding phenazine dyes3US 4,368,246 AEastman Kodak Company · 1983
- Color-forming sulfonamidodiphenylamine dye precursor that produces phenazine dye3US 4,380,666 AEastman Kodak Company · 1983
- Color-forming para-sulfonamidodiphenylamine dye precursor and sulfonimide dye in photographic material and process3US 4,390,606 AEastman Kodak Company · 1983
- Dye precursors and their use in photographic materials and processes3US 4,411,984 AEastman Kodak Company · 1983