A61K 31/34
Having five-membered rings with one oxygen as the only ring hetero atom
Official title: having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
A61K31/34 (Having five-membered rings with one oxygen as the only ring hetero atom) appears on 3,093 US grants and 5,113 published applications in this corpus.
Search patents in A61K- Granted patents
- 3,093
- Published applications
- 5,113
- Assignees
- 2,239
- Inventors
- 10,498
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 21 | 0 |
| 1990 | 16 | 0 |
| 1991 | 19 | 0 |
| 1992 | 17 | 0 |
| 1993 | 24 | 0 |
| 1994 | 21 | 0 |
| 1995 | 24 | 0 |
| 1996 | 21 | 0 |
| 1997 | 61 | 0 |
| 1998 | 50 | 0 |
| 1999 | 42 | 0 |
| 2000 | 67 | 0 |
| 2001 | 63 | 28 |
| 2002 | 71 | 114 |
| 2003 | 52 | 133 |
| 2004 | 44 | 148 |
| 2005 | 39 | 131 |
| 2006 | 39 | 118 |
| 2007 | 40 | 145 |
| 2008 | 32 | 167 |
| 2009 | 51 | 170 |
| 2010 | 50 | 165 |
| 2011 | 54 | 183 |
| 2012 | 67 | 189 |
| 2013 | 101 | 218 |
| 2014 | 126 | 248 |
| 2015 | 148 | 298 |
| 2016 | 173 | 276 |
| 2017 | 199 | 274 |
| 2018 | 171 | 234 |
| 2019 | 176 | 238 |
| 2020 | 164 | 271 |
| 2021 | 165 | 299 |
| 2022 | 142 | 259 |
| 2023 | 133 | 224 |
| 2024 | 121 | 243 |
| 2025 | 131 | 202 |
| 2026 | 73 | 138 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Small molecule inhibitors of viral replication6 Oct 2026US 12,751,963 B2The Trustees of Princeton University
- Use of phthalide compounds in treatment of meningioma22 Sep 2026US 12,740,964 B2Everfront Biotech Inc.
- Antimicrobial ferulic acid derivatives and uses thereof15 Sep 2026US 12,733,640 B2Wisconsin Alumni Research Foundation
- Neurodevelopmental disorder therapy15 Sep 2026US 12,734,147 B2Anavex Life Sciences Corp.
- Non-hormonal treatment of hot flashes15 Sep 2026US 12,734,151 B1
- Use of small molecules to increase hypoxia inducible factor (hif) activity8 Oct 2026US 2026/0306440 A1Brown University
- Medicament containing enteropeptidase inhibitor as active ingredient, and method for preventing and or treating polycystic kidney disease containing administering the same8 Oct 2026US 2026/0306441 A1National University Corporation Hokkaido University
- Method and pharmaceutical composition for treating a sleep disorder8 Oct 2026US 2026/0306442 A1Overseas Pharmaceuticals, Ltd.
- Combination therapy for treatment of depression8 Oct 2026US 2026/0306839 A1Flow Neuroscience, Inc.
- Novel carboxamide derivatives8 Oct 2026US 2026/0308149 A1Angelini Pharma S.P.A.
Most cited
By later US patents
- Method for lowering blood glucose level by the administration of bioflavonoid289US 6,096,364 AKorea Institute of Science and Technology · 2000
- Probiotic recolonisation therapy240US 8,460,648 B22013
- Taste-masked microcapsule compositions and methods of manufacture238US 6,139,865 AEurand America, Inc. · 2000
- Method of treatment with compounds having selective agonist-like activity on RXR retinoid receptors192US 5,455,265 AAllergan, Inc. · 1995
- Treatment of osteoporosis and metabolic bone disorders with nitric oxide substrate and/or donors183US 6,133,320 ABoard of Regents, The University of Texas System · 2000