A61K 31/221
With compounds having an amino group
Official title: with compounds having an amino group, e.g. acetylcholine, acetylcarnitine
A61K31/221 (With compounds having an amino group) appears on 349 US grants and 555 published applications in this corpus.
Search patents in A61K- Granted patents
- 349
- Published applications
- 555
- Assignees
- 251
- Inventors
- 863
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 15 | 0 |
| 1998 | 21 | 0 |
| 1999 | 14 | 0 |
| 2000 | 13 | 0 |
| 2001 | 6 | 5 |
| 2002 | 8 | 9 |
| 2003 | 3 | 8 |
| 2004 | 7 | 21 |
| 2005 | 5 | 8 |
| 2006 | 4 | 18 |
| 2007 | 2 | 7 |
| 2008 | 2 | 12 |
| 2009 | 1 | 12 |
| 2010 | 5 | 21 |
| 2011 | 8 | 20 |
| 2012 | 4 | 15 |
| 2013 | 12 | 22 |
| 2014 | 4 | 29 |
| 2015 | 26 | 27 |
| 2016 | 24 | 37 |
| 2017 | 21 | 31 |
| 2018 | 27 | 23 |
| 2019 | 16 | 20 |
| 2020 | 16 | 24 |
| 2021 | 14 | 22 |
| 2022 | 15 | 26 |
| 2023 | 7 | 25 |
| 2024 | 7 | 17 |
| 2025 | 22 | 24 |
| 2026 | 11 | 72 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crystalline 4-((L-valyl)oxy)butanoic acid29 Sep 2026US 12,747,199 B2Xwpharma Ltd.
- Amino acid compositions22 Sep 2026US 12,741,941 B2ThermoLife International, LLC
- Antiviral supplement formulations11 Aug 2026US 12,702,677 B2Vymedic, LLC
- Method and composition for treating osteoarthritis19 May 2026US 12,629,348 B2Vireo Systems, Inc.
- Devices and methods for delivering synergistic active agents to target sites19 May 2026US 12,629,468 B2IRRIMAX Corporation
- Sulfurized imidazoles in ophthalmic formulations8 Oct 2026US 2026/0306457 A1Geneiii Biotech Company Ltd.
- Amino acid-derived ceramide, synthesis method therefor and use thereof1 Oct 2026US 2026/0297018 A1Shenzhen Dikeman Biotechnology Co., Ltd.
- Succinylcholine chloride prefilled syringe10 Sep 2026US 2026/0263408 A1Hikma Pharmaceuticals USA Inc.
- Delivery of a cooling agent to the pharyngeal-esophageal surface10 Sep 2026US 2026/0263488 A1
- Compositions suitable for the administration of creatine esters27 Aug 2026US 2026/0248720 A1CERES BRAIN Therapeutics
Most cited
By later US patents
- Topical administration of catecholamines and related compounds to subcutaneous muscle tissue using percutaneous penetration enhancers164US 5,879,690 A1999
- Controlled release of pharmaceuticals in the anterior chamber of the eye111US 5,972,326 A1999
- Potent inducers of terminal differentiation and methods of use thereof95US 5,369,108 ASloan-Kettering Institute for Cancer Research · 1994
- Method for the management of incontinence92US 6,262,115 B1Alza Corporation · 2001
- Potent inducers of terminal differentiation and methods of use thereof91US 6,087,367 ASloan-Kettering Institute for Cancer Research · 2000