C07D 305/00
Heterocyclic compounds containing four-membered rings having one oxygen atom as the only
Official title: Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms
C07D305/00 (Heterocyclic compounds containing four-membered rings having one oxygen atom as the only) appears on 1,343 US grants and 1,107 published applications in this corpus.
Search patents in C07D- Granted patents
- 1,343
- Published applications
- 1,107
- Assignees
- 630
- Inventors
- 3,153
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 7 | 0 |
| 1992 | 13 | 0 |
| 1993 | 30 | 0 |
| 1994 | 35 | 0 |
| 1995 | 41 | 0 |
| 1996 | 43 | 0 |
| 1997 | 50 | 0 |
| 1998 | 68 | 0 |
| 1999 | 51 | 0 |
| 2000 | 55 | 0 |
| 2001 | 49 | 14 |
| 2002 | 64 | 46 |
| 2003 | 38 | 49 |
| 2004 | 37 | 49 |
| 2005 | 24 | 46 |
| 2006 | 21 | 32 |
| 2007 | 26 | 36 |
| 2008 | 22 | 38 |
| 2009 | 19 | 38 |
| 2010 | 25 | 33 |
| 2011 | 25 | 36 |
| 2012 | 22 | 41 |
| 2013 | 39 | 41 |
| 2014 | 40 | 49 |
| 2015 | 38 | 58 |
| 2016 | 49 | 58 |
| 2017 | 49 | 51 |
| 2018 | 31 | 55 |
| 2019 | 44 | 53 |
| 2020 | 41 | 45 |
| 2021 | 36 | 42 |
| 2022 | 31 | 44 |
| 2023 | 25 | 46 |
| 2024 | 20 | 50 |
| 2025 | 21 | 35 |
| 2026 | 20 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Benzenesulfonamide derivatives and method for treating cancer6 Oct 2026US 12,751,936 B2Gongwin Biopharm Co., Ltd
- NAMPT modulators29 Sep 2026US 12,747,203 B2Cytokinetics, Inc.
- Lipoxygenase inhibitors22 Sep 2026US 12,741,926 B2SRI International
- Phenyl-sulfamoyl-benzoic acid derivatives as ERAP1-modulators28 Jul 2026US 12,692,223 B2Grey Wolf Therapeutics Limited
- Treprostinil derivatives and compositions and uses thereof2 Jun 2026US 12,643,847 B2Corsair Pharma, Inc.
- Bicyclic compounds8 Oct 2026US 2026/0308114 A1Vivace Therapeutics, Inc.
- Acetoacetylated Alcohols8 Oct 2026US 2026/0308135 A1Arxada AG
- Novel carboxamide derivatives8 Oct 2026US 2026/0308149 A1Angelini Pharma S.P.A.
- Usp30 inhibitors and uses thereof1 Oct 2026US 2026/0297026 A1Vincere Biosciences, Inc.
- Method for preparing alkyl hydroxypropanoate6 Aug 2026US 2026/0225988 A1ZF Solution Co. Ltd.
Most cited
By later US patents
- Taxol derivatives, their preparation and pharmaceutical compositions containing them308US 4,814,470 ARhone-Poulenc Sante · 1989
- Derivatives of taxol, pharmaceutical compositions thereof and methods for the preparation thereof282US 4,960,790 AUniversity of Kansas · 1990
- Method and composition for enhancing transport across biological membranes214US 6,306,993 B1The Board of Trustees of the Leland Stanford Jr. University · 2001
- Process for the preparation of taxol and 10-deacetyltaxol196US 4,857,653 ARhone-Poulenc Sante · 1989
- Water-soluble polymeric carriers for drug delivery194US 5,648,506 AVivorx, Inc. · 1997