C09B 56/005
Azo-nitro dyes
Official title: {Azo-nitro dyes}
C09B56/005 (Azo-nitro dyes) appears on 9 US grants and 9 published applications in this corpus.
Search patents in C09B- Granted patents
- 9
- Published applications
- 9
- Assignees
- 6
- Inventors
- 18
- Latest grant
- 15 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 3 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Monoazo dyes with cyclic amine as fluorescence quenchers15 Dec 2020US 10,865,309 B2Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quencers20 Nov 2018US 10,131,789 B2Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quenchers1 May 2018US 9,957,393 B2Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quenchers24 Apr 2018US 9,951,227 B2Enzo Biochem, Inc.
- Printing ink composition28 Nov 2017US 9,828,507 B2Seiko Epson Corporation
- Substituted diazenylanilines as fluorescence quencher and use thereof27 Feb 2025US 2025/0066866 A1Council of Scientific and Industrial Research An Indian Registered Body Incoporated Under the Regn.
- Monoazo dyes with cyclic amine as fluorescence quenchers18 Mar 2021US 2021/0079225 A1Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quenchers28 Feb 2019US 2019/0062560 A1Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quencers2 Aug 2018US 2018/0215920 A1Enzo Biochem, Inc.
- Monoazo dyes with cyclic amine as fluorescence quenchers28 Dec 2017US 2017/0369954 A1Enzo Biochem, Inc.
Most cited
By later US patents
- Polar dyes32US 8,546,590 B2Cepheid · 2013
- 2-Amino-5-arylazoarylazothiazole compounds5US 4,250,090 ABASF SE · 1981
- Iron complex azo dyestuffs3US 4,256,634 ABayer Aktiengesellschaft · 1981
- Polar dyes2US 7,799,926 B2Cepheid · 2010
- Monoazo dyes with cyclic amine as fluorescence quenchers1US 9,957,393 B2Enzo Biochem, Inc. · 2018