C07F 9/6551
The oxygen atom being part of a four-membered ring
Official title: {the oxygen atom being part of a four-membered ring}
C07F9/6551 (The oxygen atom being part of a four-membered ring) appears on 143 US grants and 43 published applications in this corpus.
Search patents in C07F- Granted patents
- 143
- Published applications
- 43
- Assignees
- 36
- Inventors
- 144
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 17 | 0 |
| 1998 | 17 | 0 |
| 1999 | 17 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 4 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 1 | 2 |
| 2014 | 4 | 4 |
| 2015 | 0 | 1 |
| 2016 | 4 | 3 |
| 2017 | 1 | 2 |
| 2018 | 4 | 4 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metabolically stable prodrugs26 Aug 2025US 12,397,058 B2The Regents of the University of Michigan
- Chemiluminescent probes for diagnostics and in vivo imaging15 Jul 2025US 12,357,709 B2Ramot at Tel-Aviv University Ltd.
- Compound or salt thereof, composition, chemiluminescence method, method for measuring chemiluminescence signal, reagent, reagent kit, and method for assaying analyte22 Apr 2025US 12,281,092 B2Sysmex Corporation
- Chemiluminescent probes for diagnostics and in vivo imaging19 Mar 2024US 11,931,429 B2Ramot at Tel-Aviv University Ltd.
- Ligand-enabled β-C(sp3)-H lactonization for β-C—H functionalizations9 Jan 2024US 11,866,415 B2The Scripps Research Institute
- Modulator for promoting binding of butyrophilin 3a1/2a123 Jul 2026US 2026/0207637 A1Unicet Biotech Co. LLC.
- Functionalized cyclic ethers for lithium-ion batteries10 Oct 2024US 2024/0339662 A1NOHMS Technologies, Inc.
- Chemiluminescent probes for diagnostics and in vivo imaging20 Jun 2024US 2024/0197924 A1Ramot at Tel-Aviv University Ltd.
- Compound or salt thereof, composition, chemiluminescence method, method for measuring chemiluminescence signal, reagent, reagent kit, and method for assaying analyte3 Aug 2023US 2023/0242499 A1Sysmex Corporation
- Rapid, high-intensity chemiluminescent dioxetanes8 Dec 2022US 2022/0390459 A1Beckman Coulter, Inc.
Most cited
By later US patents
- Method of converting a drug to an orally available form by covalently bonding a lipid to the drug178US 5,411,947 AVestar, Inc. · 1995
- Phosphonooxy and carbonate derivatives of taxol109US 5,272,171 ABristol-Myers Squibb Company · 1993
- Fluoro taxols91US 5,294,637 ABristol-Myers Squibb Company · 1994
- Methods of using chemiluminescent 1,2-dioxetanes78US 4,931,223 ATropix, Inc. · 1990
- Prodrugs for oral administration containing taxol or substituted taxol covalently bound to a phospholipid76US 5,484,809 AVestar, Inc. · 1996