C09B 31/06
From a coupling component "c" containing a directive hydroxyl group
Official title: from a coupling component "C" containing a directive hydroxyl group
C09B31/06 (From a coupling component "c" containing a directive hydroxyl group) appears on 106 US grants and 50 published applications in this corpus.
Search patents in C09B- Granted patents
- 106
- Published applications
- 50
- Assignees
- 51
- Inventors
- 218
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 3 | 3 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 3 | 8 |
| 2013 | 6 | 2 |
| 2014 | 1 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 4 |
| 2018 | 2 | 5 |
| 2019 | 3 | 2 |
| 2020 | 5 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes17 Mar 2026US 12,577,484 B2United Color Manufacturing, Inc.
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes18 Jul 2023US 11,702,606 B2United Color Manufacturing, Inc.
- Bis-Azo colorants for use as bluing agents12 Apr 2022US 11,299,635 B2Milliken & Company
- Dichroic dye compound, polarizing film, and uses thereof30 Mar 2021US 10,961,456 B2Sumitomo Chemical Company, Limited
- Bis-azo colorants for use as bluing agents29 Dec 2020US 10,876,079 B2The Procter & Gamble Company
- Alternative solvent systems and dye formulations10 Sep 2026US 2026/0265527 A1
- Polarizing plate, liquid crystal panel using same, and photofabrication apparatus16 Jul 2026US 2026/0202599 A1Nippon Kayaku Kabushiki Kaisha
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes12 Oct 2023US 2023/0326968 A1United Color Manufacturing, Inc.
- Compositions and Methods for Marking Hydrocarbon Compositions With Non-Mutagenic Dyes7 Jan 2021US 2021/0002570 A1United Color Manufacturing, Inc.
- Dyeing composition, dyed product, and azo coloring agent12 Nov 2020US 2020/0354576 A1FUJIFILM Corporation
Most cited
By later US patents
- Utilization of dyes for liquid crystal displays29US 4,137,193 ABBC Brown, Boveri & Company, Limited · 1979
- Liquid crystal coupled dichroic dyes24US 5,389,285 AHercules Incorporated · 1995
- Aromatic disazo dyes and liquid-crystalline materials containing these dyes23US 4,667,020 ABASF SE · 1987
- Boronic acid dyes23US 5,108,502 AHewlett-Packard Company · 1992
- Dyestuff formulations21US 4,249,902 ABayer Aktiengesellschaft · 1981