C07D 305/12
Beta-lactones
C07D305/12 (Beta-lactones) appears on 179 US grants and 162 published applications in this corpus.
Search patents in C07D- Granted patents
- 179
- Published applications
- 162
- Assignees
- 100
- Inventors
- 384
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 4 |
| 2003 | 2 | 11 |
| 2004 | 7 | 8 |
| 2005 | 3 | 6 |
| 2006 | 3 | 6 |
| 2007 | 1 | 7 |
| 2008 | 4 | 2 |
| 2009 | 2 | 7 |
| 2010 | 3 | 4 |
| 2011 | 5 | 7 |
| 2012 | 4 | 10 |
| 2013 | 6 | 6 |
| 2014 | 6 | 7 |
| 2015 | 9 | 10 |
| 2016 | 10 | 9 |
| 2017 | 8 | 10 |
| 2018 | 4 | 7 |
| 2019 | 3 | 9 |
| 2020 | 10 | 9 |
| 2021 | 7 | 7 |
| 2022 | 4 | 6 |
| 2023 | 7 | 1 |
| 2024 | 1 | 4 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chiral-substituted poly-N-vinylpyrrolidinones and complexes with bimetallic nanoclusters and uses thereof in asymmetric oxidation reactions4 Mar 2025US 12,240,810 B2Kansas State University Research
- Ligand-enabled β-C(sp3)-H lactonization for β-C—H functionalizations9 Jan 2024US 11,866,415 B2The Scripps Research Institute
- Systems and methods for regioselective carbonylation of 2,2-disubstituted epoxides for the production of alpha,alpha-disubstituted beta-lactones26 Dec 2023US 11,851,416 B2Cornell University
- Acrylic acid, and methods of producing thereof28 Nov 2023US 11,827,590 B2Novomer, Inc.
- Process and system to make olefin epoxides28 Nov 2023US 11,827,613 B2ExxonMobil Technology and Engineering Company
- Method for preparing alkyl hydroxypropanoate6 Aug 2026US 2026/0225988 A1ZF Solution Co. Ltd.
- Process for preparing beta-lactones26 Feb 2026US 2026/0055071 A1Novomer, Inc.
- Difluoroaldehyde, epoxy, and derivative thereof11 Dec 2025US 2025/0376430 A1SynCrest Inc.
- Sterically modified schiff base ligands for enhanced catalytic carbonylation activity9 Jan 2025US 2025/0010278 A1Novomer, Inc.
- Methods of carbonylating 2,2,3-trialkyloxiranes and products thereof28 Nov 2024US 2024/0391888 A1
Most cited
By later US patents
- Leucine derivatives141US 4,598,089 AHoffmann-La Roche Inc. · 1986
- Catalytic carbonylation of three and four membered heterocycles68US 6,852,865 B2Cornell Research Foundation, Inc. · 2005
- Sulfoxide and bis-sulfoxide compounds and compositions for cholesterol management and related uses65US 6,673,780 B2Esperion Therapeutics, Inc. · 2004
- Ketone compounds and compositions for cholesterol management and related uses56US 6,699,910 B2Esperion Therapeutics, Inc. · 2004
- Oxetanones50US 4,931,463 AHoffmann-La Roche Inc. · 1990