C07D 501/20
7-acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived
Official title: 7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
C07D501/20 (7-acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived) appears on 829 US grants and 182 published applications in this corpus.
Search patents in C07D- Granted patents
- 829
- Published applications
- 182
- Assignees
- 187
- Inventors
- 1,159
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 89 | 0 |
| 1977 | 81 | 0 |
| 1978 | 57 | 0 |
| 1979 | 46 | 0 |
| 1980 | 34 | 0 |
| 1981 | 41 | 0 |
| 1982 | 39 | 0 |
| 1983 | 39 | 0 |
| 1984 | 40 | 0 |
| 1985 | 21 | 0 |
| 1986 | 26 | 0 |
| 1987 | 23 | 0 |
| 1988 | 34 | 0 |
| 1989 | 25 | 0 |
| 1990 | 36 | 0 |
| 1991 | 32 | 0 |
| 1992 | 18 | 0 |
| 1993 | 14 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 4 |
| 2004 | 1 | 3 |
| 2005 | 2 | 5 |
| 2006 | 1 | 13 |
| 2007 | 3 | 11 |
| 2008 | 4 | 12 |
| 2009 | 8 | 7 |
| 2010 | 9 | 7 |
| 2011 | 3 | 11 |
| 2012 | 7 | 9 |
| 2013 | 6 | 9 |
| 2014 | 9 | 11 |
| 2015 | 11 | 13 |
| 2016 | 8 | 9 |
| 2017 | 12 | 13 |
| 2018 | 6 | 14 |
| 2019 | 9 | 4 |
| 2020 | 6 | 3 |
| 2021 | 5 | 1 |
| 2022 | 0 | 5 |
| 2023 | 3 | 4 |
| 2024 | 0 | 9 |
| 2025 | 4 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cephalosporin antibacterial compound and preparation method therefor11 Aug 2026US 12,703,709 B2Jiangsu Hengrui Pharmaceuticals Co., Ltd.
- Siderophore cephalosporin conjugates and uses thereof29 Jul 2025US 12,371,441 B2Ariva Med GmbH
- Refining method of midbody of latamoxef sodium1 Jul 2025US 12,344,622 B2Hainan Hailing Chemipharma Corporation Ltd.
- Platform drug delivery system utilizing crystal engineering and theanine dissolution8 Apr 2025US 12,268,783 B2Theaprin Pharmaceuticals Inc.
- β-lactam-cannabinoid conjugate molecules25 Mar 2025US 12,257,307 B2Diverse Biotech, Inc.
- Quorum-sensing inhibitors and/or postbiotic metabolites and related methods7 May 2026US 2026/0124268 A1MicroSintesis Inc.
- Platform drug delivery system utilizing crystal engineering and theanine dissolution17 Jul 2025US 2025/0228778 A1Theaprin Pharmaceuticals Inc.
- Beta-Lactam-Cannabinoid Conjugate Molecules10 Jul 2025US 2025/0222118 A1Diverse Biotech, Inc.
- Mercaptoacetophenone aminohydrazones, their salts and uses thereof21 Nov 2024US 2024/0383846 A1London Pharmaceuticals and Research Corporation
- Metallo-ß-lactamase inhibitors10 Oct 2024US 2024/0335453 A1
Most cited
By later US patents
- Cytotoxic compounds and conjugates121US 7,517,903 B2Medarex, Inc. · 2009
- Fluorogenic substrates for .beta.-lactamase and methods of use85US 5,741,657 AThe Regents of the University of California · 1998
- 3-Acetoxymethyl-7-(iminoacetamido)-cephalosporanic acid derivatives77US 4,152,432 ARoussel Uclaf · 1979
- Cephem compounds63US 4,833,134 ATakeda Chemical Industries, Ltd. · 1989
- 7-[2-(2-Imino-4-thiazolin -4-yl)-2-(syn)-hydroxy-iminoacetamido]-cephalosporins46US 4,264,595 ATakeda Chemical Industries, Ltd. · 1981