C09B 29/3691
Containing nitrogen and sulfur as heteroatom
Official title: {containing nitrogen and sulfur as heteroatom}
C09B29/3691 (Containing nitrogen and sulfur as heteroatom) appears on 37 US grants and 26 published applications in this corpus.
Search patents in C09B- Granted patents
- 37
- Published applications
- 26
- Assignees
- 16
- Inventors
- 105
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 3 | 5 |
| 2016 | 3 | 2 |
| 2017 | 5 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same26 Aug 2025US 12,398,326 B2LG Chem.Ltd.
- Heterocyclic red azo colorants for seed treatment applications29 Apr 2025US 12,286,412 B2Milliken & Company
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same10 Dec 2024US 12,163,084 B2LG Chem.Ltd.
- Colorant mixtures9 Aug 2022US 11,407,912 B2Huntsman International LLC
- Dye compound, composition comprising dye compound, and display device using dye compound15 Oct 2019US 10,442,931 B2Samsung Display Co., Ltd.
- Heterocyclic red azo colorants for seed treatment applications31 Oct 2024US 2024/0360090 A1Milliken & Company
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same9 Nov 2023US 2023/0357638 A1LG Chem.Ltd.
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same26 Oct 2023US 2023/0340331 A1LG Chem.Ltd.
- Heterocyclic red azo colorants for seed treatment applications29 Dec 2022US 2022/0411387 A1Milliken & Company
- Colorant Mixtures6 May 2021US 2021/0130631 A1Huntsman Advanced Materials (Switzerland) GmbH
Most cited
By later US patents
- Process for preparing an azo compound from a 2-aminothiazole diazo component12US 4,046,752 AHoechst Aktiengesellschaft · 1977
- Inkjet recording ink and method of inkjet recording10US 7,311,393 B2FUJIFILM Corporation · 2007
- Azo dyes with a coupling component of the aminothiazole series9US 5,789,560 ABASF SE · 1998
- 2-Amino-5-arylazoarylazothiazole compounds5US 4,250,090 ABASF SE · 1981
- Azo dyes from unsubstituted or substituted 3-amino-pyridine and aryl or heterocyclic couplers5US 4,562,248 AEastman Kodak Company · 1985