C07C 67/08
Preparation of carboxylic acid esters: by reacting carboxylic acids or symmetrical anhydrides
Official title: by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
C07C67/08 (Preparation of carboxylic acid esters: by reacting carboxylic acids or symmetrical anhydrides) appears on 1,637 US grants and 1,694 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,637
- Published applications
- 1,694
- Assignees
- 901
- Inventors
- 4,650
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 17 | 0 |
| 1978 | 20 | 0 |
| 1979 | 8 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 15 | 0 |
| 1983 | 11 | 0 |
| 1984 | 17 | 0 |
| 1985 | 12 | 0 |
| 1986 | 7 | 0 |
| 1987 | 10 | 0 |
| 1988 | 12 | 0 |
| 1989 | 23 | 0 |
| 1990 | 9 | 0 |
| 1991 | 15 | 0 |
| 1992 | 11 | 0 |
| 1993 | 18 | 0 |
| 1994 | 15 | 0 |
| 1995 | 15 | 0 |
| 1996 | 20 | 0 |
| 1997 | 21 | 0 |
| 1998 | 16 | 0 |
| 1999 | 25 | 0 |
| 2000 | 24 | 0 |
| 2001 | 29 | 6 |
| 2002 | 37 | 32 |
| 2003 | 29 | 26 |
| 2004 | 17 | 39 |
| 2005 | 22 | 54 |
| 2006 | 26 | 50 |
| 2007 | 30 | 59 |
| 2008 | 23 | 40 |
| 2009 | 34 | 66 |
| 2010 | 42 | 81 |
| 2011 | 35 | 82 |
| 2012 | 56 | 89 |
| 2013 | 62 | 106 |
| 2014 | 98 | 83 |
| 2015 | 81 | 89 |
| 2016 | 77 | 105 |
| 2017 | 82 | 79 |
| 2018 | 68 | 66 |
| 2019 | 63 | 78 |
| 2020 | 65 | 67 |
| 2021 | 65 | 65 |
| 2022 | 43 | 88 |
| 2023 | 45 | 84 |
| 2024 | 45 | 66 |
| 2025 | 38 | 58 |
| 2026 | 36 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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