A61K 31/451
Having a carbocyclic group directly attached to the heterocyclic ring
Official title: having a carbocyclic group directly attached to the heterocyclic ring, e.g. glutethimide, meperidine, loperamide, phencyclidine, piminodine
A61K31/451 (Having a carbocyclic group directly attached to the heterocyclic ring) appears on 617 US grants and 1,083 published applications in this corpus.
Search patents in A61K- Granted patents
- 617
- Published applications
- 1,083
- Assignees
- 492
- Inventors
- 2,121
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 13 | 0 |
| 2001 | 23 | 8 |
| 2002 | 20 | 27 |
| 2003 | 16 | 24 |
| 2004 | 10 | 29 |
| 2005 | 7 | 23 |
| 2006 | 7 | 20 |
| 2007 | 9 | 19 |
| 2008 | 4 | 17 |
| 2009 | 3 | 22 |
| 2010 | 12 | 24 |
| 2011 | 12 | 35 |
| 2012 | 13 | 34 |
| 2013 | 19 | 45 |
| 2014 | 25 | 55 |
| 2015 | 35 | 71 |
| 2016 | 33 | 53 |
| 2017 | 38 | 57 |
| 2018 | 37 | 64 |
| 2019 | 45 | 60 |
| 2020 | 29 | 52 |
| 2021 | 33 | 66 |
| 2022 | 28 | 74 |
| 2023 | 31 | 70 |
| 2024 | 34 | 52 |
| 2025 | 25 | 40 |
| 2026 | 23 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods of Treating Myelofibrosis10 Sep 2026US 2026/0263471 A1Kartos Therapeutics, Inc.
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Most cited
By later US patents
- Opioid agonist/opioid antagonist/acetaminophen combinations411US 6,375,957 B1Euro-Celtique S. A. · 2002
- Opioid agonist/antagonist combinations238US 6,696,066 B2Euro-Celtique S. A. · 2004
- Opioid agonist/antagonist combinations235US 6,277,384 B1Euro-Celtique S.A. · 2001
- Opioid agonist/antagonist combinations194US 6,475,494 B2Euro-Celtique S. A. · 2002
- Pharmaceutical compositions containing drugs which are instable or sparingly soluble in water and methods for their preparation193US 6,407,079 B1Janssen Pharmaceutica NV · 2002