C07C 237/28
Carboxylic acid amides, the carbon skeleton of the acid part being further
Official title: having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton
C07C237/28 (Carboxylic acid amides, the carbon skeleton of the acid part being further) appears on 1,196 US grants and 1,205 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,196
- Published applications
- 1,205
- Assignees
- 662
- Inventors
- 3,783
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 16 | 0 |
| 1995 | 18 | 0 |
| 1996 | 19 | 0 |
| 1997 | 21 | 0 |
| 1998 | 45 | 0 |
| 1999 | 36 | 0 |
| 2000 | 30 | 0 |
| 2001 | 42 | 9 |
| 2002 | 54 | 38 |
| 2003 | 45 | 63 |
| 2004 | 48 | 72 |
| 2005 | 27 | 59 |
| 2006 | 35 | 43 |
| 2007 | 39 | 56 |
| 2008 | 31 | 58 |
| 2009 | 35 | 49 |
| 2010 | 38 | 70 |
| 2011 | 42 | 56 |
| 2012 | 38 | 47 |
| 2013 | 48 | 45 |
| 2014 | 50 | 54 |
| 2015 | 43 | 52 |
| 2016 | 40 | 60 |
| 2017 | 37 | 38 |
| 2018 | 39 | 46 |
| 2019 | 38 | 50 |
| 2020 | 34 | 37 |
| 2021 | 31 | 39 |
| 2022 | 25 | 40 |
| 2023 | 25 | 41 |
| 2024 | 25 | 43 |
| 2025 | 31 | 24 |
| 2026 | 13 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 237/42Having nitrogen atoms of amino groups bound to the carbon skeleton of457
- C07C 237/30Having the nitrogen atom of the carboxamide group bound to hydrogen atoms270
- C07C 237/40Having the nitrogen atom of the carboxamide group bound to a carbon212
- C07C 237/36Having the nitrogen atom of the carboxamide group bound to an acyclic126
- C07C 237/32Having the nitrogen atom of the carboxamide group bound to an acyclic106
- C07C 237/44Having carbon atoms of carboxamide groups, amino groups and singly-bound oxygen atoms106
- C07C 237/46Having carbon atoms of carboxamide groups, amino groups and at least three96
- C07C 237/38Having the nitrogen atom of the carboxamide group bound to a carbon84
All 9 subgroupsShow fewer
Recent patents
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Most cited
By later US patents
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