C09B 62/006
Azodyes
C09B62/006 (Azodyes) appears on 93 US grants and 19 published applications in this corpus.
Search patents in C09B- Granted patents
- 93
- Published applications
- 19
- Assignees
- 32
- Inventors
- 133
- Latest grant
- 17 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- C09B 62/008Monoazo dyes28
- C09B 62/01Disazo or polyazo dyes20
- C09B 62/012Metal complex azo dyes15
- C09B 62/0067With heterocyclic compound as coupling component11
- C09B 62/0068Dyes containing in the molecule at least one azo group and at8
- C09B 62/0061With coupling components containing an amino directing group4
- C09B 62/0064With coupling components containing both hydroxyl and amino groups as directing groups1
- C09B 62/0062With coupling components containing a hydroxyl directing group0
All 9 subgroupsShow fewer
Recent patents
- Reactive dyes and preparation methods thereof17 Sep 2024US 12,091,552 B2Nantong University
- Methods for obtaining colored or chromic substrates5 Mar 2024US 11,920,292 B2Universiteit Gent
- Methods for obtaining colored or chromic substrates5 Apr 2022US 11,293,138 B2Universiteit Gent
- Chromophores for photochromic compositions useful for three dimensional display applications25 Aug 2020US 10,752,780 B2Nitto Denko Corporation
- One-pot synthesis of reactive deep black2 Jun 2020US 10,669,425 B2SPGPrints B.V.
- Reactive dyes and preparation methods thereof14 Mar 2024US 2024/0084144 A1Nantong University
- A reactive dye compound and preparation method and application thereof7 Dec 2023US 2023/0392017 A1Shanghai Kehua Dyestuff Industry Co., Ltd.
- Methods for obtaining colored or chromic substrates18 Aug 2022US 2022/0259799 A1Universiteit Gent
- Laundry detergent31 Mar 2022US 2022/0098520 A1Conopco, Inc., d/b/a UNILEVER
- Laundry detergent31 Mar 2022US 2022/0098525 A1Conopco, Inc., d/b/a UNILEVER
Most cited
By later US patents
- Indazole-azo phenyl compounds33US 3,935,183 AImperial Chemical Industries PLC · 1976
- Wetting and anti-foaming agents, and process for removing foam from aqueous systems25US 4,071,468 ACiba-Geigy Corporation · 1978
- Process for removing foam from aqueous systems and composition useful therein20US 4,092,266 ACiba-Geigy Corporation · 1978
- 3-Nitro-5-azopyridine dyestuffs17US 4,068,085 ACiba-Geigy Corporation · 1978
- Reactive dyestuffs containing the residue of 1-hydroxy-7-amino-8-(5'-amino-2',4'-disulphophenylazo)naphthalene-3,6-di sulphonic acid17US 4,191,687 AImperial Chemical Industries PLC · 1980