C09B 29/0025
From diazotized amino heterocyclic compounds
Official title: {from diazotized amino heterocyclic compounds}
C09B29/0025 (From diazotized amino heterocyclic compounds) appears on 474 US grants and 216 published applications in this corpus.
Search patents in C09B- Granted patents
- 474
- Published applications
- 216
- Assignees
- 126
- Inventors
- 689
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 18 | 0 |
| 1978 | 14 | 0 |
| 1979 | 11 | 0 |
| 1980 | 9 | 0 |
| 1981 | 21 | 0 |
| 1982 | 13 | 0 |
| 1983 | 18 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 15 | 0 |
| 1987 | 10 | 0 |
| 1988 | 13 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 14 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 3 |
| 2002 | 9 | 8 |
| 2003 | 6 | 14 |
| 2004 | 9 | 11 |
| 2005 | 4 | 7 |
| 2006 | 11 | 12 |
| 2007 | 5 | 4 |
| 2008 | 2 | 15 |
| 2009 | 6 | 14 |
| 2010 | 7 | 16 |
| 2011 | 17 | 24 |
| 2012 | 19 | 14 |
| 2013 | 11 | 7 |
| 2014 | 6 | 8 |
| 2015 | 11 | 14 |
| 2016 | 6 | 10 |
| 2017 | 12 | 6 |
| 2018 | 6 | 7 |
| 2019 | 5 | 4 |
| 2020 | 1 | 2 |
| 2021 | 2 | 7 |
| 2022 | 2 | 4 |
| 2023 | 2 | 4 |
| 2024 | 3 | 1 |
| 2025 | 5 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- C09B 29/0029The heterocyclic ring containing only nitrogen as heteroatom197
- C09B 29/0074The heterocyclic ring containing nitrogen and sulfur as heteroatoms190
- C09B 29/0059The heterocyclic ring containing only sulfur as heteroatom96
- C09B 29/0055The heterocyclic ring containing only oxygen as heteroatom13
- C09B 29/0062The heterocyclic ring containing nitrogen and oxygen as heteroatoms13
- C09B 29/0096From other diazotized amino heterocyclic rings6
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
- Composition comprising hueing agent14 Jan 2025US 12,195,703 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
- Heterocyclic red azo colorants for seed treatment applications31 Oct 2024US 2024/0360090 A1Milliken & Company
- Composition Comprising Hueing Agent21 Dec 2023US 2023/0407207 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.
- Disperse azo dyes, a process for the preparation thereof and the use thereof16 Mar 2023US 2023/0082859 A1Huntsman Advanced Materials (Switzerland) GmbH
Most cited
By later US patents
- Ink, ink jet recording method and azo compound92US 6,878,196 B2Fuji Photo Film Co., Ltd. · 2005
- Azo dyes derived from 3-amino pyridine in hair dye compositions80US 4,025,301 ASociete Anonyme dite: L'Oreal · 1977
- Azo derivatives or pyridine N-oxide for use in hair dye compositions72US 3,955,918 ASociete Anonyme dite: L'Oreal · 1976
- Newborn's growth adjustable absorbent diaper having variable overlapping and non-overlapping ears69US 5,489,282 AKimberly-Clark Corporation · 1996
- Colored thermoplastic resin62US 4,732,570 AMilliken Research Corporation · 1988