C07C 309/02
Having sulfo groups bound to acyclic carbon atoms
Official title: having sulfo groups bound to acyclic carbon atoms
C07C309/02 (Having sulfo groups bound to acyclic carbon atoms) appears on 1,393 US grants and 1,615 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,393
- Published applications
- 1,615
- Assignees
- 745
- Inventors
- 3,824
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 24 | 0 |
| 1994 | 8 | 0 |
| 1995 | 21 | 0 |
| 1996 | 17 | 0 |
| 1997 | 23 | 0 |
| 1998 | 33 | 0 |
| 1999 | 20 | 0 |
| 2000 | 12 | 0 |
| 2001 | 16 | 2 |
| 2002 | 12 | 12 |
| 2003 | 8 | 16 |
| 2004 | 9 | 18 |
| 2005 | 6 | 24 |
| 2006 | 11 | 25 |
| 2007 | 14 | 39 |
| 2008 | 16 | 42 |
| 2009 | 27 | 51 |
| 2010 | 36 | 64 |
| 2011 | 48 | 77 |
| 2012 | 47 | 83 |
| 2013 | 56 | 74 |
| 2014 | 71 | 74 |
| 2015 | 87 | 70 |
| 2016 | 69 | 92 |
| 2017 | 77 | 93 |
| 2018 | 70 | 98 |
| 2019 | 63 | 77 |
| 2020 | 77 | 100 |
| 2021 | 65 | 88 |
| 2022 | 55 | 77 |
| 2023 | 61 | 105 |
| 2024 | 50 | 92 |
| 2025 | 51 | 71 |
| 2026 | 39 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 309/03Of an acyclic saturated carbon skeleton1,258
- C07C 309/24Of a carbon skeleton containing six-membered aromatic rings142
- C07C 309/19Of a saturated carbon skeleton containing rings110
- C07C 309/20Of an acyclic unsaturated carbon skeleton79
- C07C 309/23Of an unsaturated carbon skeleton containing rings other than six-membered aromatic rings16
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Most cited
By later US patents
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