C09B 5/2472
1,3 dioxo derivatives
Official title: {1,3 dioxo derivatives}
C09B5/2472 (1,3 dioxo derivatives) appears on 10 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 10
- Published applications
- 3
- Assignees
- 11
- Inventors
- 23
- Latest grant
- 23 Jul 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 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.
Recent patents
- Anthraquinone dye-containing material, composition including the same, camera including the same, and associated methods23 Jul 2013US 8,492,569 B2Cheil Industries Inc.
- N-alkoxylated 2,3-anthraquinonedicarboximides for polymer coloration, preparation and use18 Jun 2013US 8,466,189 B2Clariant Produkte (Deutschland) GmbH
- Dyestuffs and resin compositions18 Apr 2000US 6,051,360 AMitsui Chemicals, Inc.
- Color filter having novel dyestuff30 Jun 1998US 5,773,172 AMitsui Toatsu Chemicals, Inc.
- Disperse dyes which are convertible into a thermomigration fast form26 May 1992US 5,116,958 ACiba-Geigy Corporation
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- N-alkoxylated 2,3-anthraquinonedicarboximides for polymer coloration, preparation and use8 Sep 2011US 2011/0218276 A1DyStar Colours Deutschland GmbH
- Anthraquinone dye-containing material, composition including the same, camera including the same, and associated methods23 Jun 2011US 2011/0149128 A1Cheil Industries Inc.
Most cited
By later US patents
- Helichromic-smectic liquid crystal compositions and display cells22US 4,514,045 AMinnesota Mining and Manufacturing Company · 1985
- Disperse dyes which are convertible into a thermomigration fast form15US 5,116,958 ACiba-Geigy Corporation · 1992
- Dichroic liquid crystal compositions containing anthraquinone-based dyes11US 4,356,102 AGeneral Electric Company · 1982
- Dichroic liquid crystal compositions containing anthraquinone-based dyes4US 4,624,532 AGeneral Electric Company · 1986
- Dichroic dyestuffs for liquid crystal and liquid crystal composition2US 4,676,923 AKabushiki Kaisha Nippon Kanko Shikiso Kenkyusho · 1987