C09B 62/08
Azo dyes
C09B62/08 (Azo dyes) appears on 192 US grants and 52 published applications in this corpus.
Search patents in C09B- Granted patents
- 192
- Published applications
- 52
- Assignees
- 56
- Inventors
- 291
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 11 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 1 |
| 2003 | 2 | 5 |
| 2004 | 2 | 6 |
| 2005 | 6 | 5 |
| 2006 | 4 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 8 |
| 2009 | 3 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reactive disperse yellow dye for supercritical CO2 dyeing and methods of production and use thereof20 Jan 2026US 12,528,943 B2Dalian Polytechnic University
- Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials18 Nov 2025US 12,473,432 B2Archroma (Switzerland) GmbH
- Reactive dyes and preparation methods thereof17 Sep 2024US 12,091,552 B2Nantong University
- AZO dye for waterless dyeing of natural fibers in supercritical CO2 fluid, and preparation method thereof7 Dec 2021US 11,193,024 B2Jiangsu Danmao Textile Co., Ltd.
- Ink jet textile printing ink composition, ink set, and printing method16 Apr 2019US 10,259,961 B2Seiko Epson Corporation
- Reactive dyes27 Nov 2025US 2025/0361401 A1Alcon Inc.
- Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials8 May 2025US 2025/0145831 A1Archroma (Switzerland) GmbH
- Reactive dyes and preparation methods thereof14 Mar 2024US 2024/0084144 A1Nantong University
- Reactive Disperse Yellow Dye for Supercritical CO2 Dyeing and Methods of Production and Use Thereof18 May 2023US 2023/0151218 A1Dalian Polytechnic University
- Azo dye for waterless dyeing of natural fibers in supercritical co2 fluid, and preparation method thereof28 Oct 2021US 2021/0332245 A1Jiangsu Danmao Textile Co., Ltd.
Most cited
By later US patents
- Cationic imidazole azo dyes292US 5,708,151 ACiba Specialty Chemicals Corporation · 1998
- Aqueous ink composition81US 4,711,668 ARicoh Company, Ltd. · 1987
- Aqueous ink composition for ink jet-recording78US 4,647,310 ARicoh Company, Ltd. · 1987
- Azo dyes containing triazine middle components and a 1,4-phenylene-2,5-disubstituted coupling component35US 5,328,995 ACiba-Geigy Corporation · 1994
- Sulfo group containing triphendioxazines having at least one 1,3,5-triazine ring21US 5,122,605 ASandoz Ltd. · 1992