A61K 31/337
Having four-membered rings
Official title: having four-membered rings, e.g. taxol
A61K31/337 (Having four-membered rings) appears on 3,010 US grants and 6,096 published applications in this corpus.
Search patents in A61K- Granted patents
- 3,010
- Published applications
- 6,096
- Assignees
- 2,126
- Inventors
- 9,698
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 19 | 0 |
| 1998 | 14 | 0 |
| 1999 | 15 | 0 |
| 2000 | 22 | 0 |
| 2001 | 27 | 10 |
| 2002 | 31 | 65 |
| 2003 | 36 | 129 |
| 2004 | 27 | 100 |
| 2005 | 31 | 111 |
| 2006 | 27 | 134 |
| 2007 | 27 | 143 |
| 2008 | 35 | 147 |
| 2009 | 31 | 135 |
| 2010 | 50 | 212 |
| 2011 | 66 | 204 |
| 2012 | 83 | 189 |
| 2013 | 163 | 286 |
| 2014 | 148 | 355 |
| 2015 | 169 | 345 |
| 2016 | 222 | 397 |
| 2017 | 222 | 397 |
| 2018 | 197 | 318 |
| 2019 | 236 | 365 |
| 2020 | 198 | 348 |
| 2021 | 188 | 348 |
| 2022 | 166 | 311 |
| 2023 | 144 | 321 |
| 2024 | 172 | 296 |
| 2025 | 140 | 263 |
| 2026 | 98 | 167 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Benzenesulfonamide derivatives and method for treating cancer6 Oct 2026US 12,751,936 B2Gongwin Biopharm Co., Ltd
- Therapeutic uses of inhibitors of the RNA-binding protein HuR6 Oct 2026US 12,751,938 B2University of Kansas
- Methods for treating pancreatic cancer and other solid tumors6 Oct 2026US 12,751,991 B2Lisata Therapeutics, Inc.
- Method of predicting therapeutic response and prognosis of metastatic breast cancer to chemotherapeutic agents, and treating metastatic breast cancer6 Oct 2026US 12,753,447 B2Samsung Life Public Welfare Foundation
- A combination therapy for cancer treatment8 Oct 2026US 2026/0306633 A1Purdue Research Foundation
- Novel carboxamide derivatives8 Oct 2026US 2026/0308149 A1Angelini Pharma S.P.A.
- Powder containing particles of gelatin derivative and medical applications of the same1 Oct 2026US 2026/0294813 A1National Institute for Materials Science
- Anti-cmet antibody1 Oct 2026US 2026/0297202 A1Pierre Fabre Medicament
- Aryl-aniline and heteroaryl-aniline compounds for treatment of birthmarks24 Sep 2026US 2026/0284017 A1Nflection Therapeutics, Inc.
Most cited
By later US patents
- Method of treating androgen independent prostate cancer1,091US 9,040,574 B2Natrogen Therapeutics International, Inc. · 2015
- Anti-angiogenic compositions and methods of use968US 5,716,981 AAngiogenesis Technologies, Inc. · 1998
- Drug-delivering composite structures814US 9,446,226 B2Ramot at Tel-Aviv University Ltd. · 2016
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Therapeutic inhibitor of vascular smooth muscle cells562US 5,733,925 ANeoRx Corporation · 1998