C09B 29/0051
Containing a six-membered heterocyclic ring with two nitrogen atoms
Official title: {containing a six-membered heterocyclic ring with two nitrogen atoms}
C09B29/0051 (Containing a six-membered heterocyclic ring with two nitrogen atoms) appears on 18 US grants and 13 published applications in this corpus.
Search patents in C09B- Granted patents
- 18
- Published applications
- 13
- Assignees
- 14
- Inventors
- 47
- Latest grant
- 2 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Disperse azo dyes, a process for the preparation thereof and the use thereof2 Apr 2024US 11,946,198 B2Huntsman Textile Effects (Switzerland) GmbH
- Azo compound and black dye composition including the same5 Jan 2021US 10,882,995 B1National Chi Nan University
- Method of coloring hair with washfast blue imidazolium direct dye compounds31 Jul 2018US 10,034,823 B2Noxell Corporation
- Small molecules that covalently modify transthyretin26 Sep 2017US 9,771,321 B2The Scripps Research Institute
- Coloring composition for inkjet textile printing, textile printing method, and fabric30 Jun 2015US 9,068,290 B2FUJIFILM Corporation
- Disperse azo dyes, a process for the preparation thereof and the use thereof16 Mar 2023US 2023/0082859 A1Huntsman Advanced Materials (Switzerland) GmbH
- Azo Compound and Black Dye Composition Including the Same7 Jan 2021US 2021/0002486 A1National Chi Nan University
- Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds22 Mar 2018US 2018/0078478 A1Noxell Corporation
- Small Molecules That Covalently Modify Transthyretin6 Jul 2017US 2017/0190660 A9The Scripps Research Institute
- Coloring composition for inkjet textile printing, textile printing method, and fabric5 Feb 2015US 2015/0037546 A1FUJIFILM Corporation
Most cited
By later US patents
- Derivatives of azobarbituric acid or salts or complexes thereof27US 4,628,082 ABayer Aktiengesellschaft · 1986
- Inclusion compounds, intercalation compounds, and solid solutions of colored organic metal compounds which contains a nickel salt or nickel complex of an azobarbituric acid or its tautomer20US 4,622,391 ABayer Aktiengesellschaft · 1986
- Azo dyes, process for making the same, ink-jet printing ink, ink-jet recording method18US 6,489,452 B1Fuji Photo Film Co., Ltd. · 2002
- Phenyl-substituted phthalazone azo dyes with a coupling component of the phenol, napthol, acetoacetarylide, pyrazolone, quinolone, pyridine, pyrimidone or isoquinolone series5US 4,016,151 ABadische Anilin- & Soda-Fabrik Aktiengesellschaft · 1977
- Mono- and dipotassium salts of azo compounds5US 6,281,338 B1Bayer Aktiengesellschaft · 2001