C09B 1/28
Substituted by alkyl, aralkyl or cyclo alkyl groups
Official title: substituted by alkyl, aralkyl or cyclo alkyl groups
C09B1/28 (Substituted by alkyl, aralkyl or cyclo alkyl groups) appears on 64 US grants and 26 published applications in this corpus.
Search patents in C09B- Granted patents
- 64
- Published applications
- 26
- Assignees
- 46
- Inventors
- 156
- Latest grant
- 14 Aug 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 4 |
| 2015 | 3 | 4 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 3 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 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.
Subgroups
Granted patents
Recent patents
- Electrophoretic fluid14 Aug 2018US 10,048,562 B2Merck Patent GmbH
- Method of coloring hair with washfast blue imidazolium direct dye compounds31 Jul 2018US 10,034,823 B2Noxell Corporation
- Electrophoretic fluid22 May 2018US 9,977,309 B2Merck Patent GmbH
- Thermal transfer recording sheet1 Nov 2016US 9,481,192 B2Canon Kabushiki Kaisha
- AZO compound and ink containing the compound1 Dec 2015US 9,200,171 B2Mitsubishi Chemical Corporation
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Anthraquinonic derivatives and their use as colouring agents7 Oct 2021US 2021/0309860 A1Pili
- Anthraquinone compounds and use thereof15 Nov 2018US 2018/0327603 A1Industrial Technology Research Institute
- Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds22 Mar 2018US 2018/0078478 A1Noxell Corporation
- Electrophoretic fluid27 Oct 2016US 2016/0313624 A1Merck Patent GmbH
Most cited
By later US patents
- Electro-optical display element45US 3,960,751 AMatsushita Electric Industrial Co., Ltd. · 1976
- Color filter and liquid crystal display device having the same35US 6,509,125 B1Toppan Printing Co., Ltd. · 2003
- 2- and 5-Aminoalkylamino anthraquinone dyes useful as basic dyes in coloring hair33US 4,226,784 AL'oreal · 1980
- Copolymerized anthraquinone-polyester color concentrates29US 5,032,670 AEastman Kodak Company · 1991
- Anthraquinone compounds useful in photographic processes24US 4,110,355 APolaroid Corporation · 1978