C07C 45/51
Preparation of compounds having >c = o groups bound only to carbon
Official title: by pyrolysis, rearrangement or decomposition
C07C45/51 (Preparation of compounds having >c = o groups bound only to carbon) appears on 1,837 US grants and 785 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,837
- Published applications
- 785
- Assignees
- 604
- Inventors
- 3,259
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 84 | 0 |
| 1977 | 29 | 0 |
| 1978 | 39 | 0 |
| 1979 | 42 | 0 |
| 1980 | 66 | 0 |
| 1981 | 62 | 0 |
| 1982 | 47 | 0 |
| 1983 | 38 | 0 |
| 1984 | 60 | 0 |
| 1985 | 54 | 0 |
| 1986 | 38 | 0 |
| 1987 | 42 | 0 |
| 1988 | 46 | 0 |
| 1989 | 55 | 0 |
| 1990 | 37 | 0 |
| 1991 | 42 | 0 |
| 1992 | 40 | 0 |
| 1993 | 44 | 0 |
| 1994 | 46 | 0 |
| 1995 | 45 | 0 |
| 1996 | 34 | 0 |
| 1997 | 30 | 0 |
| 1998 | 34 | 0 |
| 1999 | 26 | 0 |
| 2000 | 32 | 0 |
| 2001 | 57 | 5 |
| 2002 | 25 | 33 |
| 2003 | 21 | 28 |
| 2004 | 23 | 45 |
| 2005 | 25 | 17 |
| 2006 | 29 | 28 |
| 2007 | 20 | 21 |
| 2008 | 14 | 28 |
| 2009 | 22 | 48 |
| 2010 | 34 | 54 |
| 2011 | 35 | 55 |
| 2012 | 36 | 45 |
| 2013 | 39 | 40 |
| 2014 | 44 | 39 |
| 2015 | 53 | 71 |
| 2016 | 66 | 41 |
| 2017 | 31 | 38 |
| 2018 | 33 | 21 |
| 2019 | 27 | 20 |
| 2020 | 20 | 16 |
| 2021 | 18 | 21 |
| 2022 | 18 | 18 |
| 2023 | 9 | 12 |
| 2024 | 8 | 19 |
| 2025 | 14 | 11 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 45/511Involving transformation of singly bound oxygen functional groups to >c = o873
- C07C 45/54Of compounds containing doubly bound oxygen atoms382
- C07C 45/53Of hydroperoxides347
- C07C 45/52By dehydration and rearrangement involving two hydroxy groups in the same molecule151
- C07C 45/516Involving transformation of nitrogen-containing compounds to >c = o groups106
- C07C 45/55Of oligo- or polymeric oxo-compounds16
- C07C 45/517Involving transformation of peroxy-compounds to >c = o groups15
- C07C 45/518Involving transformation of sulfur-containing compounds to >c = o groups14
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Most cited
By later US patents
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- Preparation of fluorocarbonyl compounds115US 4,357,282 AE. I. Du Pont de Nemours and Company · 1982
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