A61K 51/0446
Having five-membered rings with one nitrogen as the only ring hetero atom
Official title: {having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil}
A61K51/0446 (Having five-membered rings with one nitrogen as the only ring hetero atom) appears on 158 US grants and 222 published applications in this corpus.
Search patents in A61K- Granted patents
- 158
- Published applications
- 222
- Assignees
- 143
- Inventors
- 531
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 9 | 5 |
| 2003 | 4 | 6 |
| 2004 | 4 | 3 |
| 2005 | 2 | 7 |
| 2006 | 4 | 3 |
| 2007 | 0 | 2 |
| 2008 | 4 | 5 |
| 2009 | 2 | 14 |
| 2010 | 1 | 6 |
| 2011 | 2 | 10 |
| 2012 | 3 | 9 |
| 2013 | 9 | 14 |
| 2014 | 8 | 15 |
| 2015 | 12 | 17 |
| 2016 | 11 | 9 |
| 2017 | 9 | 9 |
| 2018 | 9 | 5 |
| 2019 | 3 | 11 |
| 2020 | 6 | 15 |
| 2021 | 7 | 4 |
| 2022 | 6 | 15 |
| 2023 | 3 | 5 |
| 2024 | 3 | 13 |
| 2025 | 4 | 12 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Near-infrared dyes and conjugates for targeting tumors6 Oct 2026US 12,752,023 B2Lahjavida, LLC
- Devices and methods for radiopharmaceutical synthesis31 Mar 2026US 12,589,170 B2Vanderbilt University
- Myeloperoxidase imaging agents10 Mar 2026US 12,570,606 B2The General Hospital Corporation
- Granzyme B directed imaging and therapy17 Feb 2026US 12,551,582 B2CytoSite Biopharma Inc.
- Iodinated phenolic lipids and methods and cosolvent systems for iodination of phenolic lipids30 Sep 2025US 12,427,208 B2Molecular Targeting Technologies, Inc.
- Radiolabeled Fibroblast Activation Protein Inhibitors and Methods of Making Same17 Sep 2026US 2026/0273110 A1The Regents of the University of Michigan
- Indocyanine green (icg) modification for treatment of liver cancer3 Sep 2026US 2026/0256924 A1Children's Medical Center Corporation
- Nitrogen-containing heterocyclic compound, preparation method therefor, and use thereof6 Aug 2026US 2026/0226049 A1Bivision Pharmaceuticals, Inc.
- Radioactive evans blue derivative pharmaceutical aqueous solution, preparation method therefor, and use thereof2 Jul 2026US 2026/0183435 A1Sinotau Pharmaceutical Group
- Radiolabeled amino acids for cancer imaging, therapy and corresponding labeling methods thereof11 Jun 2026US 2026/0158175 A1
Most cited
By later US patents
- Technetium—and rhenium-bis(heteroaryl) complexes and methods of use thereof62US 8,962,799 B2Molecular Insight Pharmaceuticals, Inc. · 2015
- Tritium labelled N-mustard type compounds and a process for their production60US 4,795,627 AUniversity of Pittsburgh · 1989
- Porphyrazine optical and dual optical/MR contrast and therapeutic agents54US 8,540,967 B2Hoffman/Barrett, L.L.C. · 2013
- Iodotamoxifen derivatives and use for estrogen receptor-positive breast cancer detection and therapy52US 4,839,155 ANational Research Development Corporation · 1989
- Substituted 2-carboxyalkyl-3(fluorophenyl)-8-(3-halopropen-2-yl) nortropanes and their use as imaging agents for neurodegenerative disorders47US 5,853,696 ANortheastern University · 1998