C07C 309/46
Having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic
Official title: having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
C07C309/46 (Having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic) appears on 98 US grants and 77 published applications in this corpus.
Search patents in C07C- Granted patents
- 98
- Published applications
- 77
- Assignees
- 76
- Inventors
- 235
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 4 |
| 2005 | 1 | 4 |
| 2006 | 3 | 1 |
| 2007 | 1 | 7 |
| 2008 | 2 | 5 |
| 2009 | 2 | 3 |
| 2010 | 1 | 5 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 5 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 2 |
| 2018 | 0 | 5 |
| 2019 | 5 | 8 |
| 2020 | 6 | 4 |
| 2021 | 3 | 3 |
| 2022 | 2 | 1 |
| 2023 | 4 | 3 |
| 2024 | 2 | 2 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Disulfonate stilbenes for use in the treatment of proliferative diseases25 Feb 2025US 12,233,041 B2Centre National De La Recherche Scientifique
- Synthesis process for high purity isosulfan blue using flash chromatography in commercial plant scale31 Dec 2024US 12,180,142 B1Rising Pharma Holdings, Inc.
- Compound, ink, resist composition for color filter, sheet for heat-sensitive transfer recording, and toner30 Apr 2024US 11,970,438 B2Canon Kabushiki Kaisha
- Sulfonated lignin-derived compounds and uses thereof3 Oct 2023US 11,773,537 B2CMBlu Energy AG
- Sulfonated lignin-derived compounds and uses thereof15 Aug 2023US 11,725,340 B2CMBlu Energy AG
- Synthesis process for high purity isosulfan blue using flash chromatography in commercial plant scale28 Aug 2025US 2025/0270168 A1Rising Pharma Holdings, Inc.
- Triarylmethane Dyes7 Aug 2025US 2025/0250440 A1Kinnos Inc.
- Disulfonate stilbenes for use in the treatment of proliferative diseases5 Jun 2025US 2025/0177344 A1Centre National De La Recherche Scientifique
- Hydrocarbyl tetralin polyethersulfonate, preparation method therefor and use thereof24 Oct 2024US 2024/0352190 A1China Petroleum & Chemical Corporation
- Sulfonated Lignin-Derived Compounds And Uses Thereof26 Sep 2024US 2024/0318382 A1CMBlu Energy AG
Most cited
By later US patents
- Colorant stabilizers87US 5,885,337 A1999
- Photo-stable cosmetic and pharmaceutical formulations containing UV-filters48US 5,945,091 ABASF SE · 1999
- Colorant stabilizers29US 5,855,655 AKimberly-Clark Worldwide, Inc. · 1999
- 2,4-disulfo phenyl butyl nitrone, its salts and their use as pharmaceuticals28US 5,780,510 AOklahoma Medical Research Foundation · 1998
- Colorant stabilizers25US 5,782,963 AKimberly-Clark Worldwide, Inc. · 1998