C07C 309/28
Having sulfo groups bound to carbon atoms of six-membered aromatic rings of
Official title: having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
C07C309/28 (Having sulfo groups bound to carbon atoms of six-membered aromatic rings of) appears on 976 US grants and 987 published applications in this corpus.
Search patents in C07C- Granted patents
- 976
- Published applications
- 987
- Assignees
- 597
- Inventors
- 2,828
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 5 | 0 |
| 1978 | 14 | 0 |
| 1979 | 9 | 0 |
| 1980 | 16 | 0 |
| 1981 | 11 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 15 | 0 |
| 1992 | 18 | 0 |
| 1993 | 19 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 24 | 0 |
| 1997 | 17 | 0 |
| 1998 | 17 | 0 |
| 1999 | 24 | 0 |
| 2000 | 18 | 0 |
| 2001 | 22 | 4 |
| 2002 | 12 | 15 |
| 2003 | 13 | 13 |
| 2004 | 8 | 19 |
| 2005 | 12 | 27 |
| 2006 | 11 | 15 |
| 2007 | 8 | 29 |
| 2008 | 16 | 31 |
| 2009 | 14 | 16 |
| 2010 | 17 | 29 |
| 2011 | 12 | 25 |
| 2012 | 15 | 24 |
| 2013 | 25 | 47 |
| 2014 | 29 | 57 |
| 2015 | 56 | 47 |
| 2016 | 55 | 70 |
| 2017 | 52 | 54 |
| 2018 | 43 | 48 |
| 2019 | 45 | 50 |
| 2020 | 30 | 48 |
| 2021 | 27 | 40 |
| 2022 | 34 | 52 |
| 2023 | 30 | 59 |
| 2024 | 44 | 61 |
| 2025 | 29 | 55 |
| 2026 | 19 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 309/29Of non-condensed six-membered aromatic rings365
- C07C 309/45Containing nitrogen atoms, not being part of nitro or nitroso groups, bound307
- C07C 309/41Containing singly-bound oxygen atoms bound to the carbon skeleton170
- C07C 309/57Containing carboxyl groups bound to the carbon skeleton132
- C07C 309/33Of six-membered aromatic rings being part of condensed ring systems80
- C07C 309/44Containing doubly-bound oxygen atoms bound to the carbon skeleton49
- C07C 309/39Containing halogen atoms bound to the carbon skeleton31
- C07C 309/40Containing nitro or nitroso groups bound to the carbon skeleton12
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Most cited
By later US patents
- Dichroic light polarizers162US 6,049,428 AOptiva, Inc. · 2000
- Compositions for oral delivery of active agents159US 5,650,386 AEmisphere Technologies, Inc. · 1997
- 8-(anilino)-1-naphthalenesulfonate analogs148US 6,218,571 B1LifeScan, Inc. · 2001
- Compounds and compositions for delivering active agents125US 5,866,536 AEmisphere Technologies, Inc. · 1999
- 4-((6bR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3′,4′:4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl)-1-(4-fluorophenyl)-1-butanone toluenesulfonic acid addition salt and salt crystals108US 8,648,077 B2Intra-Cellular Therapies, Inc. · 2014