C07C 309/47
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
C07C309/47 (Having at least one of the sulfo groups bound to a carbon) appears on 59 US grants and 24 published applications in this corpus.
Search patents in C07C- Granted patents
- 59
- Published applications
- 24
- Assignees
- 31
- Inventors
- 120
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 2 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 12 | 0 |
| 2025 | 3 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- 8-((3-formyl-4-hydroxyphenyl)diazenyl)naphthalene-1,3-disulfonic acid as an antioxidant compound1 Apr 2025US 12,264,127 B1King Faisal University
- Acid as an antioxidant compound1 Apr 2025US 12,264,128 B1King Faisal University
- Photoacid generator for chemically amplified photoresists4 Mar 2025US 12,242,190 B2International Business Machines Corporation
- 8-((4-hydroxy-3-methoxyphenyl)diazenyl)naphthalene-1,3-disulfonic acid as an antioxidant compound31 Dec 2024US 12,180,143 B1King Faisal University
- 8-(4-bromobenzylideneamino)naphthalene-1,3-disulfonic acid as an antioxidant compound21 May 2024US 11,987,543 B1King Faisal University
- Novel amyloid-beta aggregate degrader and brain-targeting drug delivery system using same25 Sep 2025US 2025/0295612 A1University-Industry Cooperation Group of Kyung Hee University
- 8-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonic acid as an antioxidant compound1 May 2025US 2025/0136543 A1King Faisal University
- 8-((4-hydroxy-3-methylphenyl)diazenyl)naphthalene-1,3-disulfonic acid as an antimicrobial compound1 May 2025US 2025/0136544 A1King Faisal University
- Photoacid generator for chemically amplified photoresists29 Sep 2022US 2022/0308448 A1International Business Machines Corporation
- Selective ship inhibitors for treating disease3 Sep 2020US 2020/0277256 A1Syracuse University
Most cited
By later US patents
- 8-(anilino)-1-naphthalenesulfonate analogs148US 6,218,571 B1LifeScan, Inc. · 2001
- Amyloidosis and Alzheimer's disease diagnostic assay and reagents therefor27US 4,933,156 ASalutar, Inc. · 1990
- Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor27US 5,039,511 ASalutar, Inc. · 1991
- Polymer foam containing chemically modified carbonaceous filler24US 6,258,864 B1Cabot Corporation · 2001
- Substituted 1-phenyl-3-pyrazolecarboxamides active on neurotensin receptors, their preparation and pharmaceutical compositions containing them16US 5,723,483 ASanofi · 1998