C09B 62/513
Disazo or polyazo dyes
C09B62/513 (Disazo or polyazo dyes) appears on 86 US grants and 36 published applications in this corpus.
Search patents in C09B- Granted patents
- 86
- Published applications
- 36
- Assignees
- 33
- Inventors
- 168
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 0 |
| 2004 | 3 | 6 |
| 2005 | 2 | 1 |
| 2006 | 2 | 3 |
| 2007 | 2 | 5 |
| 2008 | 3 | 4 |
| 2009 | 4 | 4 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the simultaneous tanning and dyeing of collagen containing fibrous material3 Jun 2025US 12,319,973 B2Archroma (Switzerland) GmbH
- Method of manufacturing reactive composition and ink for high stability12 Nov 2024US 12,139,616 B2
- Reactive dye compound and preparation method and application thereof28 Jun 2022US 11,370,921 B2Shanghai Kehua Dyestuff Industry Co., Ltd.
- Reactive navy to black dye composition and dye product thereof23 Mar 2021US 10,954,392 B2Shanghai Kehua Dyestuff Industry Co., Ltd.
- Heavy metal free, blue and navy fibre-reactive dye mixtures28 May 2019US 10,301,475 B2DryStar Colours Distribution GmbH
- A reactive dye compound and preparation method and application thereof7 Dec 2023US 2023/0392017 A1Shanghai Kehua Dyestuff Industry Co., Ltd.
- Method of manufacturing reactive composition and ink for high stability28 Oct 2021US 2021/0332246 A13 Wins Digital Technology Co., Ltd.
- Process for the Simultaneous Tanning and Dyeing of Collagen Containing Fibrous Material7 Jan 2021US 2021/0002735 A1Huntsman Advanced Materials (Switzerland) GmbH
- A reactive navy to black dye composition and dye product thereof10 Sep 2020US 2020/0283634 A1Shanghai Kehua Dyestuff Industry Co., Ltd.
- A reactive dye compound and preparation method and application thereof23 Jul 2020US 2020/0231819 A1Shanghai Kehua Dyestuff Industry Co., Ltd.
Most cited
By later US patents
- Disazo dye composition19US 4,257,770 ASumitomo Chemical Company, Limited · 1981
- Water-soluble disazo dyestuffs19US 4,323,497 AHoechst Aktiengesellschaft · 1982
- Water-soluble azo dyestuffs14US 4,378,312 AHoechst Aktiengesellschaft · 1983
- Pyrazolone or pyridone type water soluble disazo colorant containing one or two triazine rings12US 4,843,150 AMitsubushi Chemical Industries Limited · 1989
- Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same12US 5,488,101 ASumitomo Chemical Company, Limited · 1996