C07F 9/65502
The oxygen atom being part of a three-membered ring
Official title: {the oxygen atom being part of a three-membered ring}
C07F9/65502 (The oxygen atom being part of a three-membered ring) appears on 112 US grants and 76 published applications in this corpus.
Search patents in C07F- Granted patents
- 112
- Published applications
- 76
- Assignees
- 67
- Inventors
- 251
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 7 |
| 2004 | 5 | 7 |
| 2005 | 4 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 3 |
| 2010 | 3 | 6 |
| 2011 | 4 | 2 |
| 2012 | 2 | 2 |
| 2013 | 6 | 3 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 9 |
| 2019 | 6 | 8 |
| 2020 | 8 | 3 |
| 2021 | 4 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 3 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Organic phosphorus compound, preparation method therefor, and uses thereof7 Apr 2026US 12,595,433 B2China Petroleum & Chemical Corporation
- Method for the detection and quantification of fosfomycin, impurities and degradation products thereof25 Nov 2025US 12,480,920 B2Meitheal Pharmaceuticals, Inc.
- Organophosphorus compound, and preparation process and use thereof22 Oct 2024US 12,122,974 B2China Petroleum & Chemical Corporation
- Arabitol and xylitol based flame retardants16 Nov 2021US 11,174,369 B2International Business Machines Corporation
- Resveratrol-based flame retardant materials3 Aug 2021US 11,078,425 B2International Business Machines Corporation
- Synthesis of Fosfomycin Disodium30 Jul 2026US 2026/0217747 A1Interquim S.A. De C.V.
- Organic phosphorus compound, preparation method therefor, and uses thereof30 Jan 2025US 2025/0034476 A1China Petroleum & Chemical Corporation
- Vanillin-derived flame retardant monomers, resins, prepolymers, and polymers21 Sep 2023US 2023/0295198 A1The Governing Council of the University of Toronto
- Phosphorus-containing flame retardant mixtures, a process for production of said mixtures and use of said mixtures, and also epoxy resin formulations which comprise said flame retardant mixtures31 Aug 2023US 2023/0272283 A1Clariant International Ltd.
- Biosynthesis of chemically diversified non-natural terpene products25 May 2023US 2023/0159961 A1Board of Trustees of Michigan State University
Most cited
By later US patents
- Phosphonic acid derivatives65US 5,719,303 AEisai Co., Ltd. · 1998
- Therapeutic phosphonate compounds59US 7,645,747 B2Gilead Sciences, Inc. · 2010
- Phosphobetaines57US 4,215,064 AJohnson & Johnson · 1980
- Imidazoline phosphobetaines38US 4,380,637 AJohnson & Johnson/Mona Industries, Inc. · 1983
- Mild cleansing compositions comprising an alkyleneoxylated bisquaternary ammonium compound and an anionic or amphoteric detergent such as a phosphobetaine33US 4,181,634 AJohnson & Johnson · 1980