C09B 29/0074
The heterocyclic ring containing nitrogen and sulfur as heteroatoms
Official title: {the heterocyclic ring containing nitrogen and sulfur as heteroatoms}
C09B29/0074 (The heterocyclic ring containing nitrogen and sulfur as heteroatoms) appears on 190 US grants and 93 published applications in this corpus.
Search patents in C09B- Granted patents
- 190
- Published applications
- 93
- Assignees
- 69
- Inventors
- 323
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 6 |
| 2003 | 2 | 11 |
| 2004 | 6 | 1 |
| 2005 | 3 | 3 |
| 2006 | 1 | 4 |
| 2007 | 0 | 0 |
| 2008 | 2 | 5 |
| 2009 | 1 | 7 |
| 2010 | 5 | 7 |
| 2011 | 7 | 10 |
| 2012 | 6 | 4 |
| 2013 | 4 | 3 |
| 2014 | 4 | 3 |
| 2015 | 3 | 5 |
| 2016 | 3 | 5 |
| 2017 | 4 | 5 |
| 2018 | 3 | 2 |
| 2019 | 4 | 3 |
| 2020 | 1 | 0 |
| 2021 | 2 | 4 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 4 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
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 applications24 Jun 2025US 12,338,349 B2Milliken & Company
- Heterocyclic red azo colorants for seed treatment applications29 Apr 2025US 12,286,412 B2Milliken & Company
- Method for improving alkali resistance and oxidation resistance of benzothiazole disperse dye7 Jan 2025US 12,187,899 B2Penglai Jiaxin Dye Chemical Co., LTD
- 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.
- 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
- Heterocyclic red azo colorants for seed treatment applications29 Dec 2022US 2022/0411638 A1Milliken & Company
Most cited
By later US patents
- Ink, ink jet recording method and azo compound92US 6,878,196 B2Fuji Photo Film Co., Ltd. · 2005
- Utilization of dyes for liquid crystal displays29US 4,137,193 ABBC Brown, Boveri & Company, Limited · 1979
- Alkyleneoxy fugitive tints containing a 2-amino, 6-methoxy benzathiazole group and process for preparing such fugitive tints29US 4,400,320 AMilliken Research Corporation · 1983
- Indoline coupled isothiazole azo dyes22US 4,354,970 AEastman Kodak Company · 1982
- Aqueous ink compositions19US 6,344,497 B12002