A61K 51/0431
Having five-membered rings
Official title: {having five-membered rings}
A61K51/0431 (Having five-membered rings) appears on 13 US grants and 33 published applications in this corpus.
Search patents in A61K- Granted patents
- 13
- Published applications
- 33
- Assignees
- 28
- Inventors
- 98
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 4 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 4 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application10 Feb 2026US 12,544,463 B2Five Eleven Pharma Inc.
- Heteroaryl compounds and uses thereof15 Oct 2024US 12,116,364 B2Aprinoia Therapeutics Limited
- Bicyclic compounds for diagnosis and therapy11 Apr 2023US 11,623,931 B2AC Immune SA
- NIR to SWIR fluorescent compounds for imaging and detection10 Jan 2023US 11,549,017 B2PerkinElmer Health Sciences, Inc.
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application27 Jul 2021US 11,071,794 B2Five Eleven Pharma Inc.
- 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
- Prostate specific membrane antigen (psma) ligands27 Nov 2025US 2025/0360236 A1Albert-Ludwigs-Universität Freiburg
- Method for synthesizing iodo- or astatoaryl compounds using arylsulfonium salts6 Nov 2025US 2025/0339565 A1Centre National De La Recherche Scientifique
- Heteroaryl compounds and uses thereof27 Mar 2025US 2025/0101018 A1Aprinoia Therapeutics Limited
Most cited
By later US patents
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application6US 10,912,849 B2Five Eleven Pharma Inc. · 2021
- Isotopically-labeled polycyclic amine derivatives6US 4,960,815 AWarner-Lambert Company · 1990
- Isotopically-labeled polycyclic amine derivatives2US 5,081,304 AWarner-Lambert Company · 1992
- Method of localizing and quantifying regional energy metabolism in a warm-blooded living being and composition therefor2US 5,135,735 AMallinckrodt Medical, Inc. · 1992
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application1US 11,071,794 B2Five Eleven Pharma Inc. · 2021