A61K 31/5585
Having five-membered rings containing oxygen as the only ring hetero atom
Official title: having five-membered rings containing oxygen as the only ring hetero atom, e.g. prostacyclin
A61K31/5585 (Having five-membered rings containing oxygen as the only ring hetero atom) appears on 139 US grants and 166 published applications in this corpus.
Search patents in A61K- Granted patents
- 139
- Published applications
- 166
- Assignees
- 86
- Inventors
- 265
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 6 |
| 2002 | 10 | 11 |
| 2003 | 7 | 8 |
| 2004 | 3 | 6 |
| 2005 | 1 | 3 |
| 2006 | 1 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 6 |
| 2010 | 1 | 3 |
| 2011 | 3 | 7 |
| 2012 | 2 | 3 |
| 2013 | 4 | 8 |
| 2014 | 3 | 10 |
| 2015 | 5 | 8 |
| 2016 | 8 | 9 |
| 2017 | 4 | 4 |
| 2018 | 10 | 9 |
| 2019 | 4 | 9 |
| 2020 | 6 | 7 |
| 2021 | 2 | 9 |
| 2022 | 3 | 6 |
| 2023 | 5 | 6 |
| 2024 | 3 | 10 |
| 2025 | 6 | 4 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Polyunsaturated fatty acid-bound alpha fetoprotein promotes immune suppression by altering human dendritic cell metabolism18 Jun 2026US 2026/0166115 A1Parker Institute for Cancer Immunotherapy
- Liposome compositions comprising weak acid drugs and uses thereof28 May 2026US 2026/0144751 A1Pharmosa Biopharm Inc.
- Nebulizer kits and uses thereof12 Mar 2026US 2026/0069535 A1
- Tyrosine kinase inhibitor and activin type 2 receptor antagonist combination therapy for treating pulmonary arterial hypertension (pah)12 Feb 2026US 2026/0042816 A1GB002, Inc.
Most cited
By later US patents
- Treatment of female sexual dysfunction239US 5,877,216 AVivus, Inc. · 1999
- Treatment of female sexual dysfunction233US 6,294,550 B1Asivi, LLC · 2001
- Treatment of female sexual dysfunction212US 6,306,841 B1Asivi, LLC · 2001
- Non-acidic cyclopentane heptanoic acid,2-cycloalkyl or arylalkyl derivatives as therapeutic agents177US 6,403,649 B1Allergan Sales, Inc. · 2002
- Treatment of female sexual dysfunction using phosphodiesterase inhibitors112US 6,469,016 B1Vivus, Inc. · 2002