A61K 51/0419
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}
A61K51/0419 (Having five-membered rings with one oxygen as the only ring hetero atom) appears on 21 US grants and 25 published applications in this corpus.
Search patents in A61K- Granted patents
- 21
- Published applications
- 25
- Assignees
- 20
- Inventors
- 92
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 5 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
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.
- Metolazone emulsion formulation22 Oct 2024US 12,121,520 B2Hyloris Developments SA
- Metolazone emulsion formulation19 Jul 2022US 11,389,451 B2Hyloris Developments SA
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application27 Jul 2021US 11,071,794 B2Five Eleven Pharma Inc.
- Deuterium substituted positron emission tomography (PET) imaging agents and their pharmacological application9 Feb 2021US 10,912,849 B2Five Eleven Pharma Inc.
- Small molecule tracers binding to alpha-synuclein aggregates and their uses23 Jul 2026US 2026/0207795 A1Fudan University
- Metolazone emulsion formulation19 Jan 2023US 2023/0018789 A1Hyloris Developments SA
- Novel deuterium substituted positron emission tomography (pet) imaging agents and their pharmacological application11 Nov 2021US 2021/0346526 A1Five Eleven Pharma Inc.
- Solution comprising fluorescent dye as fiducial marker9 Sep 2021US 2021/0275692 A1Danmarks Tekniske Universitet
- Novel deuterium substituted positron emission tomography (pet) imaging agents and their pharmacological application23 Jul 2020US 2020/0230263 A1Five Eleven Pharma Inc.
Most cited
By later US patents
- Contrast agents for myocardial perfusion imaging19US 7,485,283 B2Lantheus Medical Imaging, Inc. · 2009
- Contrast agents for myocardial perfusion imaging16US 8,263,042 B2Lantheus Medical Imaging, Inc. · 2012
- Platelet receptor antagonists useful in detecting intravascular platelet aggregation13US 5,334,369 AMedical University of South Carolina · 1994
- 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