C07C 45/57
With oxygen as the only heteroatom
Official title: with oxygen as the only heteroatom
C07C45/57 (With oxygen as the only heteroatom) appears on 840 US grants and 285 published applications in this corpus.
Search patents in C07C- Granted patents
- 840
- Published applications
- 285
- Assignees
- 347
- Inventors
- 1,610
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 19 | 0 |
| 1978 | 14 | 0 |
| 1979 | 18 | 0 |
| 1980 | 28 | 0 |
| 1981 | 33 | 0 |
| 1982 | 21 | 0 |
| 1983 | 25 | 0 |
| 1984 | 17 | 0 |
| 1985 | 29 | 0 |
| 1986 | 18 | 0 |
| 1987 | 17 | 0 |
| 1988 | 19 | 0 |
| 1989 | 26 | 0 |
| 1990 | 24 | 0 |
| 1991 | 22 | 0 |
| 1992 | 26 | 0 |
| 1993 | 27 | 0 |
| 1994 | 19 | 0 |
| 1995 | 18 | 0 |
| 1996 | 27 | 0 |
| 1997 | 31 | 0 |
| 1998 | 21 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 32 | 4 |
| 2002 | 19 | 16 |
| 2003 | 17 | 18 |
| 2004 | 13 | 26 |
| 2005 | 13 | 16 |
| 2006 | 18 | 12 |
| 2007 | 11 | 12 |
| 2008 | 7 | 7 |
| 2009 | 8 | 16 |
| 2010 | 11 | 5 |
| 2011 | 5 | 7 |
| 2012 | 5 | 9 |
| 2013 | 12 | 13 |
| 2014 | 9 | 8 |
| 2015 | 12 | 12 |
| 2016 | 10 | 18 |
| 2017 | 13 | 15 |
| 2018 | 14 | 5 |
| 2019 | 6 | 8 |
| 2020 | 4 | 3 |
| 2021 | 7 | 10 |
| 2022 | 7 | 11 |
| 2023 | 8 | 9 |
| 2024 | 3 | 11 |
| 2025 | 10 | 10 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for synthesizing xanthohumol11 Aug 2026US 12,703,673 B2Pro Xn Sp. Z O.O.
- Processes for preparing C-4 sugars and ketose sugars2 Jun 2026US 12,643,921 B2Archer Daniels Midland Company
- Process for preparing the dialdehyde of vinylcyclohexene5 May 2026US 12,617,743 B2Evonik Oxeno GmbH
- Cyclopentenones derivatives and their use as antibiotics28 Apr 2026US 12,612,354 B2Centre National de la Recherche Scientifique (CNRS)
- Method for preparing p-xylene by biomass conversion21 Apr 2026US 12,606,502 B2China Petroleum & Chemical Corporation
- Thermolytic fragmentation of sugars20 Aug 2026US 2026/0242322 A1Topsoe A/S
- Process for condensing oxygenate mixtures11 Jun 2026US 2026/0159467 A1Topsoe A/S
- Method for non-catalytic extraction of phenolic aldehydes from lignocellulosic biomass30 Apr 2026US 2026/0116837 A1
- Thermolytic fragmentation of sugars22 Jan 2026US 2026/0022088 A1Topsoe A/S
- Method for preparing 2,5-hexanedione using 5-chloromethylfurfural11 Dec 2025US 2025/0376429 A1Xiamen University
Most cited
By later US patents
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Retroviral protease inhibiting compounds109US 5,354,866 AAbbott Laboratories · 1994
- Retroviral protease inhibiting compounds94US 5,541,206 AAbbott Laboratories · 1996
- Hydroformylation process for producing 1,6-hexanedials72US 5,312,996 AUnion Carbide Chemicals & Plastics Technology Corporation · 1994
- Synthesis of liquid fuels and chemicals from oxygenated hydrocarbons70US 8,053,615 B2Virent Energy Systems, Inc. · 2011