C09B 1/24
Sulfonated
Official title: sulfonated
C09B1/24 (Sulfonated) appears on 6 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 6
- Published applications
- 3
- Assignees
- 7
- Inventors
- 17
- Latest grant
- 26 May 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Polycarboxylic acid dye with low polymerization degree26 May 2015US 9,040,634 B2Dalian University of Technology
- Process for preparing 1,4-diaminoanthraquinone-2,3-disubstituted compound7 Jun 1988US 4,749,521 ASumitomo Chemical Company, Limited
- Process for the preparation of 1,4-diaminoanthraquinone-2-sulfonic acid13 Oct 1987US 4,699,735 ACiba-Geigy Corporation
- Process for producing 1,4-diaminoanthraquinone-2-sulfonic acid9 Apr 1985US 4,510,087 ASumitomo Chemical Company, Limited
- Process for the preparation of 1,4-diaminoanthraquinone-2,3-disulphonic acid21 Jul 1981US 4,279,825 ABayer Aktiengesellschaft
- Electrolytic Solution, Electrolytic Aqueous Solution, and Power Generating Device5 Dec 2019US 2019/0372145 A1Kyushu University, National University Corporation
- Polycarboxylic acid dye with low polymerization degree31 Oct 2013US 2013/0289218 A1Dalian University of Technology
- Anthraquinone Dyes As Photosensitizers In Photovoltaic Cells21 Oct 2010US 2010/0267957 A1Clariant Finance (BVI) Limited
Most cited
By later US patents
- Process for the manufacture of nuclear-sulphonated compounds2US 3,957,860 ACiba-Geigy Corporation · 1976
- Process for producing 1,4-diaminoanthraquinone-2-sulfonic acid2US 4,510,087 ASumitomo Chemical Company, Limited · 1985
- Process for preparing 1,4-diaminoanthraquinone-2,3-disubstituted compound2US 4,749,521 ASumitomo Chemical Company, Limited · 1988
- Process for the preparation of 1,4-diaminoanthraquinone-2,3-disulphonic acid1US 4,279,825 ABayer Aktiengesellschaft · 1981