A61K 31/4355
The heterocyclic ring system containing a five-membered ring having oxygen as a
Official title: the heterocyclic ring system containing a five-membered ring having oxygen as a ring hetero atom
A61K31/4355 (The heterocyclic ring system containing a five-membered ring having oxygen as a) appears on 297 US grants and 560 published applications in this corpus.
Search patents in A61K- Granted patents
- 297
- Published applications
- 560
- Assignees
- 289
- Inventors
- 1,499
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 10 |
| 2004 | 1 | 10 |
| 2005 | 2 | 3 |
| 2006 | 2 | 13 |
| 2007 | 2 | 10 |
| 2008 | 4 | 24 |
| 2009 | 5 | 17 |
| 2010 | 2 | 22 |
| 2011 | 15 | 25 |
| 2012 | 11 | 28 |
| 2013 | 26 | 28 |
| 2014 | 21 | 30 |
| 2015 | 10 | 33 |
| 2016 | 20 | 22 |
| 2017 | 30 | 33 |
| 2018 | 20 | 29 |
| 2019 | 31 | 30 |
| 2020 | 13 | 30 |
| 2021 | 22 | 24 |
| 2022 | 13 | 26 |
| 2023 | 13 | 24 |
| 2024 | 12 | 26 |
| 2025 | 9 | 34 |
| 2026 | 7 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pyrazole-substituted cyclopentanol ester derivative and use thereof25 Aug 2026US 12,715,859 B2Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
- Compound used as RET kinase inhibitor and application thereof19 May 2026US 12,629,358 B2Tyk Medicines, Inc.
- N-methyl-D-aspartic acid receptor modulators10 Feb 2026US 12,544,363 B2Emory Univeristy
- Administration of berberine metabolites27 Jan 2026US 12,533,346 B2Axcess Global Sciences, LLC
- Bicyclic pyridine derivative27 Jan 2026US 12,534,475 B2Sumitomo Pharma Co., Ltd.
- Identification of host factors and compounds to boost viral transduction8 Oct 2026US 2026/0308589 A1University of Massachusetts
- Cyclic vinyl sulfone wrn inhibitors1 Oct 2026US 2026/0297070 A1Nimbus Wadjet, Inc.
- 1 h-pyrrolo[2,3-b]pyridin-4-yl]-2-oxopyrrolidine-3-carbonitrile derivatives as tyrosine kinase 2 (tyk2) inhibitors for the treatment of inflammatory diseases1 Oct 2026US 2026/0297085 A1Biogen MA Inc.
- Heterocyclic compounds as 5ht2a biased agonists10 Sep 2026US 2026/0265246 A1
- Rapid induction with monthly injectable buprenorphine extended-release30 Jul 2026US 2026/0216146 A1Indivior UK Limited
Most cited
By later US patents
- Drug loaded polymeric nanoparticles and methods of making and using same119US 8,420,123 B2Bind Biosciences, Inc. · 2013
- Drug loaded polymeric nanoparticles and methods of making and using same111US 8,617,608 B2BIND Therapeutics, Inc. · 2013
- Drug loaded polymeric nanoparticles and methods of making and using same108US 8,609,142 B2BIND Therapeutics, Inc. · 2013
- Drug loaded polymeric nanoparticles and methods of making and using same106US 8,613,954 B2BIND Therapeutics, Inc. · 2013
- Use of compounds that interfere with the hedgehog signaling pathway for the manufacture of a medicament for preventing, inhibiting, and/or reversing ocular diseases related with ocular neovascularization98US 7,517,870 B2Fondazione Telethon · 2009