G03C 7/30
Colour processes using colour-coupling substances
Official title: Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
G03C7/30 (Colour processes using colour-coupling substances) appears on 4,361 US grants and 655 published applications in this corpus.
Search patents in G03C- Granted patents
- 4,361
- Published applications
- 655
- Assignees
- 130
- Inventors
- 2,544
- Latest grant
- 17 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 54 | 0 |
| 1977 | 68 | 0 |
| 1978 | 59 | 0 |
| 1979 | 58 | 0 |
| 1980 | 76 | 0 |
| 1981 | 98 | 0 |
| 1982 | 72 | 0 |
| 1983 | 56 | 0 |
| 1984 | 86 | 0 |
| 1985 | 105 | 0 |
| 1986 | 99 | 0 |
| 1987 | 85 | 0 |
| 1988 | 139 | 0 |
| 1989 | 167 | 0 |
| 1990 | 182 | 0 |
| 1991 | 209 | 0 |
| 1992 | 147 | 0 |
| 1993 | 255 | 0 |
| 1994 | 238 | 0 |
| 1995 | 262 | 0 |
| 1996 | 207 | 0 |
| 1997 | 162 | 0 |
| 1998 | 190 | 0 |
| 1999 | 204 | 0 |
| 2000 | 208 | 0 |
| 2001 | 183 | 34 |
| 2002 | 162 | 122 |
| 2003 | 174 | 122 |
| 2004 | 117 | 134 |
| 2005 | 60 | 95 |
| 2006 | 62 | 54 |
| 2007 | 53 | 43 |
| 2008 | 26 | 19 |
| 2009 | 15 | 10 |
| 2010 | 5 | 3 |
| 2011 | 5 | 6 |
| 2012 | 1 | 5 |
| 2013 | 5 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03C 7/32Colour coupling substances1,128
- G03C 7/305Substances liberating photographically active agents892
- G03C 7/392Additives840
- G03C 7/3022Materials with specific emulsion characteristics687
- G03C 7/407Development processes or agents therefor575
- G03C 7/3003Materials characterised by the use of combinations of photographic compounds known as487
- G03C 7/3029Materials characterised by a specific arrangement of layers376
- G03C 7/42Bleach-fixing or agents therefor370
All 14 subgroupsShow fewer
- G03C 7/3041Materials with specific sensitometric characteristics351
- G03C 7/388Processes for the incorporation in the emulsion of substances liberating photographically active326
- G03C 7/3046Processing baths not provided for elsewhere168
- G03C 7/44Regeneration136
- G03C 7/3017With intensification of the image by oxido-reduction93
- G03C 2007/3001PanchromaticIndexing code0
Recent patents
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- Methods for evaluating resist development23 Apr 2020US 2020/0124973 A1
- Polyhydric phenol compound and method of producing same11 Jul 2019US 2019/0210947 A1Mitsubishi Chemical Corporation
- Organic compound, near infrared absorbing dye, photoelectric conversion element, light sensor thereof, and imaging element21 Mar 2019US 2019/0086790 A1Nippon Kayaku Kabushiki Kaisha
Most cited
By later US patents
- Multiple language user interface for thermal comfort controller204US 6,621,507 B1Honeywell International Inc. · 2003
- Composite photographic material with laminated biaxially oriented polyolefin sheets157US 5,866,282 AEastman Kodak Company · 1999
- Photographic emulsions, elements and processes utilizing release compounds124US 4,248,962 AEastman Kodak Company · 1981
- Method for producing an electronic image from a photographic element112US 5,609,978 AEastman Kodak Company · 1997
- Photographic imaging system incorporating metadata recording capability108US 6,180,312 B2Eastman Kodak Company · 2001