C07D 303/00
Compounds containing three-membered rings having one oxygen atom as the only ring
Official title: Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
C07D303/00 (Compounds containing three-membered rings having one oxygen atom as the only ring) appears on 3,275 US grants and 1,594 published applications in this corpus.
Search patents in C07D- Granted patents
- 3,275
- Published applications
- 1,594
- Assignees
- 1,205
- Inventors
- 6,702
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 112 | 0 |
| 1977 | 68 | 0 |
| 1978 | 91 | 0 |
| 1979 | 59 | 0 |
| 1980 | 82 | 0 |
| 1981 | 78 | 0 |
| 1982 | 78 | 0 |
| 1983 | 69 | 0 |
| 1984 | 59 | 0 |
| 1985 | 63 | 0 |
| 1986 | 64 | 0 |
| 1987 | 82 | 0 |
| 1988 | 68 | 0 |
| 1989 | 88 | 0 |
| 1990 | 111 | 0 |
| 1991 | 80 | 0 |
| 1992 | 113 | 0 |
| 1993 | 109 | 0 |
| 1994 | 82 | 0 |
| 1995 | 63 | 0 |
| 1996 | 71 | 0 |
| 1997 | 84 | 0 |
| 1998 | 79 | 0 |
| 1999 | 69 | 0 |
| 2000 | 75 | 0 |
| 2001 | 61 | 9 |
| 2002 | 73 | 57 |
| 2003 | 58 | 69 |
| 2004 | 43 | 74 |
| 2005 | 35 | 63 |
| 2006 | 46 | 52 |
| 2007 | 43 | 57 |
| 2008 | 28 | 68 |
| 2009 | 37 | 68 |
| 2010 | 39 | 78 |
| 2011 | 54 | 59 |
| 2012 | 39 | 54 |
| 2013 | 67 | 82 |
| 2014 | 55 | 65 |
| 2015 | 65 | 86 |
| 2016 | 64 | 74 |
| 2017 | 69 | 75 |
| 2018 | 66 | 80 |
| 2019 | 63 | 64 |
| 2020 | 69 | 83 |
| 2021 | 43 | 58 |
| 2022 | 37 | 56 |
| 2023 | 38 | 54 |
| 2024 | 35 | 46 |
| 2025 | 28 | 38 |
| 2026 | 23 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hyperbranched polyglycerol polyglycidyl ether and its use as crosslinker for polysaccharides6 Oct 2026US 12,753,158 B2Biopolimeri S.R.L.
- Aromatic diol compounds, diepoxide compounds, polymers prepared from such compounds, and methods for making the same1 Sep 2026US 12,723,128 B2Swimc LLC
- Propylene oxide production apparatus and propylene oxide production method25 Aug 2026US 12,714,977 B2Sumitomo Chemical Company, Limited
- Metal-organic framework (MOF) MIL-125 and preparation method and use thereof25 Aug 2026US 12,714,989 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Inhibitors of human epididymus protein 425 Aug 2026US 12,715,897 B2University of Rochester
- Compounds for the formation of vitrimers1 Oct 2026US 2026/0297046 A1
- Polyethylene terephthalate produced from used tires1 Oct 2026US 2026/0297247 A1
- Simplified ethylene oxide purification methods10 Sep 2026US 2026/0265210 A1Dow Global Technologies LLC
- Epoxy compound and use thereof10 Sep 2026US 2026/0265270 A1Shanghai Huilun Pharmaceutical Co., Ltd.
- Process for the synthesis of the compound 5,7-diiodo-1-oxaspiro[2,5]octa-4,7- dien-6-one27 Aug 2026US 2026/0250258 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Formulations and methods for treatment of mucosal associated conditions with an immune response modifier193US 6,486,168 B13M Innovative Properties Company · 2002
- Sensitizers for photopolymerization190US 4,308,400 ACiba-Geigy Corporation · 1981
- Amide derivatives176US 4,636,505 AImperial Chemical Industries PLC · 1987
- Phenethanolamine derivatives172US 4,992,474 AGlaxo Group Limited · 1991
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992