C09B 1/52
Sulfonated
Official title: sulfonated
C09B1/52 (Sulfonated) appears on 9 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 9
- Published applications
- 3
- Assignees
- 6
- Inventors
- 25
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Anthraquinone compound, liquid crystal composition containing said compound, and light-controlling element17 Jun 2025US 12,331,240 B2Nippon Kayaku Kabushiki Kaisha
- Laser-welded article of laser-transmissible workpiece including alkaline earth metal salt of anthraquinone acidic dye11 May 2010US 7,713,607 B2Orient Chemical Industries, Ltd.
- 6/7-Halogenoanthraquinone compounds, and the production and use thereof17 Nov 1981US 4,301,080 ACiba-Geigy Corporation
- Anthraquinone dyes11 Apr 1978US 4,083,858 AImperial Chemical Industries PLC
- Process for the manufacture of anthraquinone compounds29 Mar 1977US 4,014,906 ACiba-Geigy Corporation
- Anthraquinone compound, liquid crystal composition containing said compound, and light-controlling element5 Dec 2024US 2024/0400899 A1Nippon Kayaku Kabushiki Kaisha
- Inorganic-organic hybrid compound27 Apr 2017US 2017/0112948 A1
- Laser-Welded Article Of Laser-Transmissible Workpiece Including Alkaline Earth Metal Salt Of Anthraquinone-Type Acidic Dye20 Dec 2007US 2007/0292651 A1Orient Chemical Industries, Ltd.
Most cited
By later US patents
- Laser-welded article of laser-transmissible workpiece including alkaline earth metal salt of anthraquinone acidic dye9US 7,713,607 B2Orient Chemical Industries, Ltd. · 2010
- Deep-dyed nylon fiber and dyed styling yarn2US 3,958,930 AE. I. Du Pont de Nemours and Company · 1976
- Anthraquinone dyestuffs containing sulphonic acid groups2US 3,980,677 ABayer Aktiengesellschaft · 1976
- Process for the manufacture of anthraquinone compounds2US 4,014,906 ACiba-Geigy Corporation · 1977
- 6/7-Halogenoanthraquinone compounds, and the production and use thereof2US 4,301,080 ACiba-Geigy Corporation · 1981