G03F 3/00
Colour separation
Official title: Colour separation; Correction of tonal value (photographic copying apparatus in general G03B)
G03F3/00 (Colour separation) appears on 612 US grants and 82 published applications in this corpus.
Search patents in G03F- Granted patents
- 612
- Published applications
- 82
- Assignees
- 119
- Inventors
- 745
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 17 | 0 |
| 1982 | 19 | 0 |
| 1983 | 9 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 18 | 0 |
| 1988 | 13 | 0 |
| 1989 | 19 | 0 |
| 1990 | 23 | 0 |
| 1991 | 38 | 0 |
| 1992 | 29 | 0 |
| 1993 | 43 | 0 |
| 1994 | 46 | 0 |
| 1995 | 44 | 0 |
| 1996 | 38 | 0 |
| 1997 | 28 | 0 |
| 1998 | 30 | 0 |
| 1999 | 25 | 0 |
| 2000 | 23 | 0 |
| 2001 | 18 | 4 |
| 2002 | 8 | 11 |
| 2003 | 13 | 20 |
| 2004 | 9 | 16 |
| 2005 | 9 | 6 |
| 2006 | 4 | 7 |
| 2007 | 3 | 3 |
| 2008 | 3 | 0 |
| 2009 | 2 | 3 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Photographic color image using black and white emulsion11 Nov 2025US 12,468,215 B2Penumbra Foundation
- Photographic color image using black and while emulsion11 Oct 2022US 11,467,483 B1Penumbra Foundation
- Mass spectrometry data processing program31 May 2022US 11,348,775 B2Shimadzu Corporation
- Mask element precursor and relief image-forming system8 Sep 2020US 10,768,520 B2Miraclon Corporation
- Selecting colorant amount for printing18 Jun 2019US 10,326,909 B2HP Indigo B. V.
- Photographic color image using black and white emulsion18 Apr 2024US 2024/0126159 A1Penumbra Foundation
- Mass spectrometry data processing program15 Jul 2021US 2021/0217599 A1Shimadzu Corporation
- Mask element precursor and relief image-forming system22 Aug 2019US 2019/0258152 A1Miraclon Corporation
- Selecting colorant amount for printing18 Jan 2018US 2018/0020119 A1HP Indigo B. V.
- Expanded color gamut11 Jun 2015US 2015/0158317 A1Sun Chemical Corporation
Most cited
By later US patents
- Ablation-transfer imaging/recording243US 5,171,650 AGraphics Technology International Inc. · 1992
- Ablation-transfer imaging/recording199US 5,156,938 AGraphics Technology International Inc. · 1992
- Ablation-transfer imaging/recording159US 5,256,506 AGraphics Technology International Inc. · 1993
- Technique for use in conjunction with an imaging system for providing an appearance match between two images and for calibrating the system thereto119US 5,333,069 AEastman Kodak Company · 1994
- Propellant-containing thermal transfer donor elements115US 5,278,023 AMinnesota Mining and Manufacturing Company · 1994