C07D 503/00
Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a
Official title: Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: [IMAGE cpc-sch-C07D-0994.gif] , e.g. oxapenicillins, clavulanic acid derivatives; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
C07D503/00 (Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a) appears on 175 US grants and 30 published applications in this corpus.
Search patents in C07D- Granted patents
- 175
- Published applications
- 30
- Assignees
- 51
- Inventors
- 194
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 12 | 0 |
| 1982 | 9 | 0 |
| 1983 | 9 | 0 |
| 1984 | 15 | 0 |
| 1985 | 13 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 4 |
| 2002 | 3 | 1 |
| 2003 | 1 | 4 |
| 2004 | 1 | 5 |
| 2005 | 1 | 2 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Beta-lactam compounds and methods of use thereof12 May 2026US 12,624,382 B2The University of Hong Kong
- Lactivicin compounds, their preparation and use as antibacterial agents10 Oct 2023US 11,780,832 B2Fedora Pharmaceuticals Inc.
- Regulation of nitric oxide release and biofilm development13 Oct 2015US 9,156,855 B2Newsouth Innovation Pty Limited
- Optically-detectable enzyme substrates and their method of use21 Oct 2014US 8,865,891 B2Life Technologies Corporation
- Optically-detectable enzyme substrates and their method of use27 Nov 2012US 8,318,450 B2Life Technologies Corporation
- Mercaptoacetophenone aminohydrazones, their salts and uses thereof21 Nov 2024US 2024/0383846 A1London Pharmaceuticals and Research Corporation
- Lactivicin compounds, their preparation and use as antibacterial agents13 Oct 2022US 2022/0324858 A1Fedora Pharmaceuticals Inc.
- Beta-lactam compounds and methods of use thereof8 Jul 2021US 2021/0207188 A1The University of Hong Kong
- Optically-Detectable Enzyme Substrates and Their Method of Use16 Mar 2017US 2017/0073359 A1Life Technologies Corporation
- Optically-Detectable Enzyme Substrates and Their Method of Use19 May 2016US 2016/0139135 A1Life Technologies Corporation
Most cited
By later US patents
- Antibacterial agents78US 4,297,345 ABeecham Group Limited · 1981
- Carboxyalkenamidocephalosporins50US 4,634,697 AShionogi & Co., Ltd. · 1987
- Process for the production of clavulanic acid45US 4,110,165 ABeecham Group Limited · 1978
- Esters of clavulanic acid41US 4,427,690 ABeecham Group Limited · 1984
- Antimicrobial quinolonyl lactams38US 5,491,139 AThe Procter & Gamble Company · 1996