D06P 3/68
Preparing azo dyes on the material
D06P3/68 (Preparing azo dyes on the material) appears on 31 US grants and 5 published applications in this corpus.
Search patents in D06P- Granted patents
- 31
- Published applications
- 5
- Assignees
- 10
- Inventors
- 36
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
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| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
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| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 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
- Methods and apparatuses for processing textile fibers, kettle automatic operation devices, and textile fiber products16 Mar 2021US 10,947,667 B2Bestee Material (Tsingtao) Co., Ltd.
- Azo dyes27 May 2014US 8,734,534 B2Kemira Oyj
- Method of achieving a permanent “stone-wash” effect on textile fibre materials25 Mar 2008US 7,347,878 B2Huntsman International LLC
- Process for the preparation of water-insoluble azo dyes on the fiber: impregnating with coupling component and treating with diazonium salt of 4-chloro-2,5-dialkoxy aniline6 Mar 1990US 4,906,250 A
- Reactive Disperse Yellow Dye for Supercritical CO2 Dyeing and Methods of Production and Use Thereof18 May 2023US 2023/0151218 A1Dalian Polytechnic University
- Blue and navy fibre reactive dye mixtures7 Nov 2019US 2019/0338132 A1DyStar Colours Distribution GmbH
- Methods and apparatuses for processing textile fibers, kettle automatic operation devices, and textile fiber products4 Oct 2018US 2018/0282944 A1Bestee Material (Tsingtao) Co., Ltd.
- Azo dyes3 Oct 2013US 2013/0255007 A1Kemira Oyj
- Method of achieving a permanent "stone-wash" effect on textile fibre materials17 Aug 2006US 2006/0179581 A1Huntsman International LLC
Most cited
By later US patents
- Process for the continuous dyeing of cellulose fibers or mixtures thereof with synthetic fibers with water-insoluble azo dyestuffs developed on the fiber10US 4,082,504 AHoechst Aktiengesellschaft · 1978
- Red-1-hydroxy-3,6-disulfo-8-acetamido-2-(3 phosphonophenylazo)naphthalene dyes7US 4,098,784 ABurlington Industries, Inc. · 1978
- Process for the continuous dyeing of cellulose fibers or mixtures thereof with synthetic fibers with water-in-soluble azo dyestuffs developing on the fiber6US 4,077,766 AHoechst Aktiengesellschaft · 1978
- Process for the printing with developing dyes6US 4,094,637 AHoechst Aktiengesellschaft · 1978
- Process for dyeing textile material of polyester fiber/cellulose blends5US 3,961,884 AHoechst Aktiengesellschaft · 1976