C07D 501/26
Methylene radicals, substituted by oxygen atoms
Official title: Methylene radicals, substituted by oxygen atoms; Lactones thereof with the 2-carboxyl group
C07D501/26 (Methylene radicals, substituted by oxygen atoms) appears on 106 US grants and 39 published applications in this corpus.
Search patents in C07D- Granted patents
- 106
- Published applications
- 39
- Assignees
- 66
- Inventors
- 246
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 4 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 4 |
| 2011 | 0 | 0 |
| 2012 | 2 | 3 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 4 |
| 2016 | 1 | 2 |
| 2017 | 2 | 3 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 4 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 501/34With the 7-amino radical acylated by carboxylic acids containing hetero rings64
- C07D 501/28With the 7-amino radical acylated by an aliphatic carboxylic acid, which is14
- C07D 501/32With the 7-amino radical acylated by an araliphatic carboxylic acid, which is6
- C07D 501/30With the 7-amino-radical acylated by an araliphatic carboxylic acid2
Recent patents
- Cephalosporin antibacterial compound and preparation method therefor11 Aug 2026US 12,703,709 B2Jiangsu Hengrui Pharmaceuticals Co., Ltd.
- β-lactam-cannabinoid conjugate molecules25 Mar 2025US 12,257,307 B2Diverse Biotech, Inc.
- Crystal of cephalosporin intermediate 7α-methoxy cephalothin and method for preparing same6 Jul 2021US 11,053,259 B2Qilu Antibiotics Pharmaceutical Co. Ltd.
- 6,7-trans cephalosporin-based probes for detecting bacteria expressing a metallo-beta-lactamase25 Feb 2020US 10,570,150 B2The Board of Trustees of the Leland Stanford Junior University
- Synthesis process of precursors of derivatives of beta-lactam nuclei and precursors and derivatives thereof20 Aug 2019US 10,385,068 B2
- Quorum-sensing inhibitors and/or postbiotic metabolites and related methods7 May 2026US 2026/0124268 A1MicroSintesis Inc.
- Beta-Lactam-Cannabinoid Conjugate Molecules10 Jul 2025US 2025/0222118 A1Diverse Biotech, Inc.
- Metallo-ß-lactamase inhibitors10 Oct 2024US 2024/0335453 A1
- Metallo-beta-lactamase inhibitor25 Jul 2024US 2024/0245783 A1National University Corporation Kumamoto University
- Bioluminogenic assay for drug-resistance bacteria detection11 Jul 2024US 2024/0229098 A1The Board of Trustees of the Leland Stanford Junior University
Most cited
By later US patents
- Cytotoxic compounds and conjugates121US 7,517,903 B2Medarex, Inc. · 2009
- 3-Acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives77US 4,152,432 ARoussel Uclaf · 1979
- 7-[2-(2-Imino-4-thiazolin -4-yl)-2-(syn)-hydroxy-iminoacetamido]-cephalosporins46US 4,264,595 ATakeda Chemical Industries, Ltd. · 1981
- Antibacterial cephalosporin compounds43US 5,336,768 AHoffmann-La Roche Inc. · 1994
- L-Threonine derivatives of high therapeutic index33US 7,589,233 B2Signature R&D Holdings, LLC · 2009