C07C 309/43
Having at least one of the sulfo groups bound to a carbon
Official title: having at least one of the sulfo groups bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system
C07C309/43 (Having at least one of the sulfo groups bound to a carbon) appears on 41 US grants and 31 published applications in this corpus.
Search patents in C07C- Granted patents
- 41
- Published applications
- 31
- Assignees
- 31
- Inventors
- 108
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 0 | 2 |
| 2015 | 5 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Calixarene compounds and uses thereof25 Aug 2026US 12,714,682 B2Universität Wien
- Water soluble pyranine polymers and method of making2 Jan 2024US 11,859,026 B2Nouryon Chemicals International B. V.
- 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
- Stable positive side material for all-organic flow battery8 Feb 2022US 11,245,111 B2University of Southern California
- Sulfonium salt monomer, polymer, chemically amplified resist composition, and pattern forming method30 Jul 2026US 2026/0219570 A1Shin-Etsu Chemical Co., Ltd.
- Radiation-sensitive composition, method for forming pattern and onium salt compound5 Mar 2026US 2026/0063994 A1Jsr Corporation
- Onium salt, chemically amplified resist composition, and patterning process17 Apr 2025US 2025/0122165 A1Shin-Etsu Chemical Co., Ltd.
- Onium salt monomer, polymer, chemically amplified resist composition, and pattern forming process10 Apr 2025US 2025/0116934 A1Shin-Etsu Chemical Co., Ltd.
- Sulfonated Lignin-Derived Compounds And Uses Thereof26 Sep 2024US 2024/0318382 A1CMBlu Energy AG
Most cited
By later US patents
- Chemically reactive pyrenyloxy sulfonic acid dyes88US 5,132,432 AMolecular Probes, Inc. · 1992
- (Hetero)aryloxynaphthalenes having substituents bonded via sulphur28US 4,952,235 ABayer Aktiengesellschaft · 1990
- Photocleavable derivatives of hydroxyprenesulfonic acids22US 5,514,710 AMolecular Probes, Inc. · 1996
- Macrocyclic anti-viral compound and method16US 5,196,452 AGenelabs Incorporated · 1993
- Antithrombotic treatment with calix(n)arene compounds14US 5,409,959 AGenelabs Incorporated · 1995