D06P 1/08
Cationic azo dyes
Official title: cationic azo dyes
D06P1/08 (Cationic azo dyes) appears on 24 US grants and 5 published applications in this corpus.
Search patents in D06P- Granted patents
- 24
- Published applications
- 5
- Assignees
- 16
- Inventors
- 54
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Colored fiber, method for manufacturing colored fiber, and fiber product29 Sep 2026US 12,747,518 B2Kaneka Corporation
- Coloring composition for inkjet textile printing, textile printing method, and fabric30 Jun 2015US 9,068,290 B2FUJIFILM Corporation
- Agents for coloring keratin fibers1 Jul 2008US 7,393,366 B2The Procter & Gamble Company
- Biscationic disazo and trisazo compounds having optionally further substituted 6-hydroxy-4-methy-3-N-pyridiniumpyridone-2 coupling component radicals, dyes compositions comprising them and their use11 Jun 1991US 5,023,324 ASandoz Ltd.
- Benzthiazolium azo dyes5 Mar 1991US 4,997,918 ACiba-Geigy Corporation
- Colored fiber, method for manufacturing colored fiber, and fiber product23 Jan 2025US 2025/0027232 A1Kaneka Corporation
- Leather-like sheet and fiber structure13 Feb 2020US 2020/0048828 A1Kuraray Co., Ltd.
- Coloring composition for inkjet textile printing, textile printing method, and fabric5 Feb 2015US 2015/0037546 A1FUJIFILM Corporation
- Agents for coloring keratin fibers18 Jan 2007US 2007/0011821 A1The Procter & Gamble Company
- Method for brightening textile materials27 Oct 2005US 2005/0235429 A1BASF Aktiengessellschaft
Most cited
By later US patents
- Polymeric azo compounds containing at least four cationic groups11US 4,675,388 ASandoz Ltd. · 1987
- Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylnaphthyl-1-azophenyl groups for dyeing paper8US 4,046,502 ASandoz Ltd. · 1977
- Triazole-azo-phenyl cationic dyestuffs8US 4,051,117 ABayer Aktiengesellschaft · 1977
- 3-Trifluoromethyl-4-phenyl-pyrazolium azo dyestuffs8US 4,101,540 AProduits Chimiques Ugine Kuhlmann · 1978
- Water-insoluble yellow terephthalate-azo-acetoacetylamido-benzimidazolone dyestuffs8US 4,150,019 AHoechst Aktiengesellschaft · 1979