C09B 29/3665
Containing a six-membered heterocyclic ring with two nitrogen atoms
Official title: {containing a six-membered heterocyclic ring with two nitrogen atoms}
C09B29/3665 (Containing a six-membered heterocyclic ring with two nitrogen atoms) appears on 59 US grants and 35 published applications in this corpus.
Search patents in C09B- Granted patents
- 59
- Published applications
- 35
- Assignees
- 28
- Inventors
- 123
- Latest grant
- 2 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 3 | 3 |
| 2012 | 3 | 3 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 5 |
| 2018 | 6 | 3 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
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
- Sensor dyes for real-time sensing of metal ions in aqueous environments15 Mar 2022US 11,275,071 B2UWM Research Foundation, Inc.
- Yellow ink composition for nonaqueous inkjet26 Jan 2021US 10,899,941 B2Sakata Inx Corporation
- Azo compound and black dye composition including the same5 Jan 2021US 10,882,995 B1National Chi Nan University
- Dye compound, composition comprising dye compound, and display device using dye compound15 Oct 2019US 10,442,931 B2Samsung Display Co., Ltd.
- Coloring composition, film, color filter, display device, and structural body29 Aug 2024US 2024/0287310 A1FUJIFILM 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
- Sensor dyes for real-time sensing of metal ions in aqueous environments30 Jan 2020US 2020/0033314 A1AquaMetals, LLC
- Yellow ink composition for nonaqueous inkjet13 Jun 2019US 2019/0177563 A1Sakata Inx Corporation
Most cited
By later US patents
- Dichroic azo dyes59US 5,589,100 AHercules Incorporated · 1996
- 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
- Green-yellow to orange monoazo paper dyes18US 4,071,312 AE. I. Du Pont de Nemours and Company · 1978
- Sulfo group-containing monoazo compounds having an unsubstituted or substituted 4-(benzothiazol-2'-yl)phenyl or 4-(6'-benzothiazol-2"yl)-benzothiazol-2'-yl)phenyldiazo component radical and a 6-hydroxypyrid-2-one coupling component radical12US 4,877,412 ASandoz Ltd. · 1989