A61K 31/4525
Containing a five-membered ring with oxygen as a ring hetero atom
Official title: containing a five-membered ring with oxygen as a ring hetero atom
A61K31/4525 (Containing a five-membered ring with oxygen as a ring hetero atom) appears on 483 US grants and 957 published applications in this corpus.
Search patents in A61K- Granted patents
- 483
- Published applications
- 957
- Assignees
- 480
- Inventors
- 1,912
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 2 |
| 2002 | 10 | 17 |
| 2003 | 10 | 12 |
| 2004 | 3 | 17 |
| 2005 | 2 | 14 |
| 2006 | 4 | 10 |
| 2007 | 4 | 15 |
| 2008 | 7 | 28 |
| 2009 | 0 | 20 |
| 2010 | 3 | 21 |
| 2011 | 7 | 20 |
| 2012 | 6 | 25 |
| 2013 | 17 | 24 |
| 2014 | 23 | 47 |
| 2015 | 26 | 56 |
| 2016 | 26 | 48 |
| 2017 | 30 | 55 |
| 2018 | 29 | 50 |
| 2019 | 37 | 53 |
| 2020 | 38 | 66 |
| 2021 | 29 | 53 |
| 2022 | 29 | 60 |
| 2023 | 20 | 58 |
| 2024 | 31 | 73 |
| 2025 | 32 | 69 |
| 2026 | 21 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Combination treatment for depression150US 6,436,938 B1Pfizer Inc. · 2002
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- Method for treating certain psychiatric disorders and certain psychiatric symptoms88US 5,114,976 A1992
- Methods for inducing site-specific immunosuppression and compositions of site specific immunosuppressants85US 5,540,931 A1996
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