A61K 51/0421
Having six-membered rings with one oxygen as the only ring hetero atom
Official title: {having six-membered rings with one oxygen as the only ring hetero atom}
A61K51/0421 (Having six-membered rings with one oxygen as the only ring hetero atom) appears on 49 US grants and 70 published applications in this corpus.
Search patents in A61K- Granted patents
- 49
- Published applications
- 70
- Assignees
- 41
- Inventors
- 123
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 5 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 3 | 4 |
| 2009 | 2 | 4 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 3 | 7 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 5 | 2 |
| 2016 | 1 | 3 |
| 2017 | 3 | 1 |
| 2018 | 2 | 8 |
| 2019 | 4 | 3 |
| 2020 | 2 | 6 |
| 2021 | 3 | 1 |
| 2022 | 0 | 4 |
| 2023 | 3 | 3 |
| 2024 | 3 | 3 |
| 2025 | 1 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cromolyn derivatives and related methods of imaging and treatment21 Apr 2026US 12,605,471 B2The General Hospital Corporation
- Therapeutic use of mitochondria and combined mitochondrial agents14 Apr 2026US 12,600,800 B2Beth Israel Deaconess Medical Center, Inc.
- Cromolyn esters and uses thereof12 Aug 2025US 12,383,528 B2The General Hospital Corporation
- Therapeutic use of mitochondria and combined mitochondrial agents17 Dec 2024US 12,168,700 B2Beth Israel Deaconess Medical Center, Inc.
- PSMA targeted fluorescent agents for image guided surgery20 Aug 2024US 12,065,413 B2The Johns Hopkins Universty
- Nitrogen-containing heterocyclic compound, preparation method therefor, and use thereof6 Aug 2026US 2026/0226049 A1Bivision Pharmaceuticals, Inc.
- Amphiphilic compounds for attenuating neurotoxicity of amyloid-beta oligomers and diagnostic methods29 Jan 2026US 2026/0027243 A1The Board of Trustees of the University of Illinois
- Probes for cellular senescence17 Jul 2025US 2025/0228983 A1
- Composition and method for diagnostic imaging17 Apr 2025US 2025/0121100 A1Suntec Medical, Inc.
- Fluorine-18 labeled compositions and their use in imaging of biological tissue6 Feb 2025US 2025/0041463 A1Cornell University
Most cited
By later US patents
- PSMA-targeting compounds and uses thereof47US 9,056,841 B2The Johns Hopkins University · 2015
- Cromolyn derivatives and related methods of imaging and treatment40US 8,617,517 B2The General Hospital Corporation · 2013
- Contrast agents for myocardial perfusion imaging23US 7,344,702 B2Bristol-Myers Squibb Pharma Company · 2008
- Contrast agents for myocardial perfusion imaging21US 8,226,929 B2Lantheus Medical Imaging, Inc. · 2012
- Contrast agents for myocardial perfusion imaging19US 7,485,283 B2Lantheus Medical Imaging, Inc. · 2009