C09B 67/0046
Mixtures of two or more azo dyes
Official title: {Mixtures of two or more azo dyes}
C09B67/0046 (Mixtures of two or more azo dyes) appears on 570 US grants and 321 published applications in this corpus.
Search patents in C09B- Granted patents
- 570
- Published applications
- 321
- Assignees
- 150
- Inventors
- 994
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 17 | 0 |
| 1992 | 18 | 0 |
| 1993 | 12 | 0 |
| 1994 | 25 | 0 |
| 1995 | 20 | 0 |
| 1996 | 22 | 0 |
| 1997 | 21 | 0 |
| 1998 | 11 | 0 |
| 1999 | 21 | 0 |
| 2000 | 23 | 0 |
| 2001 | 20 | 2 |
| 2002 | 13 | 8 |
| 2003 | 14 | 10 |
| 2004 | 9 | 17 |
| 2005 | 7 | 13 |
| 2006 | 15 | 21 |
| 2007 | 8 | 19 |
| 2008 | 16 | 28 |
| 2009 | 14 | 20 |
| 2010 | 20 | 17 |
| 2011 | 11 | 7 |
| 2012 | 9 | 14 |
| 2013 | 8 | 18 |
| 2014 | 21 | 11 |
| 2015 | 10 | 19 |
| 2016 | 11 | 18 |
| 2017 | 11 | 17 |
| 2018 | 17 | 11 |
| 2019 | 16 | 9 |
| 2020 | 11 | 16 |
| 2021 | 5 | 10 |
| 2022 | 6 | 7 |
| 2023 | 6 | 1 |
| 2024 | 4 | 4 |
| 2025 | 3 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ink composition for ink jet printing15 Sep 2026US 12,735,591 B2Seiko Epson Corporation
- Yellow and magenta donor formulations for increased red vividness20 Jan 2026US 12,528,946 B2Kodak Alaris Inc.
- Reactive navy to black dye composition and dye product thereof6 Jan 2026US 12,516,194 B2Shanghai Kehua Dyestuff Industry Co., Ltd.
- 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
- Azo iron complex dye, ink composition containing same, and method for producing azo iron complex dye12 Aug 2025US 12,384,920 B2Orient Chemical Industries, Ltd.
- New class of disperse azo dyes, a process for the preparation thereof and the use thereof13 Aug 2026US 2026/0234404 A1Archroma (Switzerland) GmbH
- Yellow and magenta donor formulations for increased red vividness16 Apr 2026US 2026/0103599 A1Kodak Alaris 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
- Pigment preparations13 Mar 2025US 2025/0084251 A1LANXESS Deutschland GmbH
- Azo iron complex dye, ink composition containing same, and method for producing azo iron complex dye12 Dec 2024US 2024/0409746 A1Orient Chemical Industries, Ltd.
Most cited
By later US patents
- Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides: treatment with copper hydroxamates59US 4,707,161 ABASF SE · 1987
- Lightfastness of dyeings obtained with acid dyes or metal complex dyes on polyamides58US 4,613,334 ABASF SE · 1986
- AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compound56US 8,377,616 B2Canon Kabushiki Kaisha · 2013
- Toner including compound having bisazo skeleton53US 8,815,484 B2Canon Kabushiki Kaisha · 2014
- azo compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the AZO compound52US 8,628,899 B2Canon Kabushiki Kaisha · 2014