C07C 67/02
Preparation of carboxylic acid esters: by interreacting ester groups, i.e. transesterification
Official title: by interreacting ester groups, i.e. transesterification
C07C67/02 (Preparation of carboxylic acid esters: by interreacting ester groups, i.e. transesterification) appears on 168 US grants and 193 published applications in this corpus.
Search patents in C07C- Granted patents
- 168
- Published applications
- 193
- Assignees
- 140
- Inventors
- 484
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 4 |
| 2011 | 1 | 3 |
| 2012 | 2 | 3 |
| 2013 | 0 | 4 |
| 2014 | 8 | 5 |
| 2015 | 8 | 17 |
| 2016 | 11 | 18 |
| 2017 | 13 | 14 |
| 2018 | 20 | 19 |
| 2019 | 12 | 16 |
| 2020 | 16 | 10 |
| 2021 | 12 | 18 |
| 2022 | 11 | 11 |
| 2023 | 13 | 8 |
| 2024 | 5 | 14 |
| 2025 | 5 | 10 |
| 2026 | 7 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heterogeneous catalyst for transesterification and method of preparing same6 Oct 2026US RE51,051 E1Crystaphase Products, Inc.
- Liquid plasma discharge device and method for biodiesel synthesis using same15 Sep 2026US 12,734,499 B2Regents of the University of Minnesota
- Heterogeneous catalyst for transesterification and method of preparing same18 Aug 2026US RE50,994 E1Crystaphase Products, Inc.
- Composition and method for preparing the same14 Jul 2026US 12,679,797 B2Industrial Technology Research Institute
- Tetraisopentyl esters of butanetetracarboxylic acid, production thereof and use thereof as plasticizers14 Jul 2026US 12,679,964 B2Evonik Oxeno GmbH
- Process for the preparation of hydroxyphenylcarboxylic acid esters using catalytic transesterification13 Aug 2026US 2026/0234094 A1BASF SE
- Enzyme variants and uses thereof13 Aug 2026US 2026/0234677 A1Samsara Eco Pty Limited
- Processes for making 1,2-diacetoxyethane from monoethylene glycol by reactive distillation and integrated vinyl acetate monomer production6 Aug 2026US 2026/0225987 A1New Product Innovation, LLC
- Catalysts and method for producing recycled polyester6 Aug 2026US 2026/0226251 A1Petroleo Brasileiro S.A. - Petrobras
- Method for producing polycarboxylic acid ester compound23 Jul 2026US 2026/0209159 A1Honshu Chemical Industry Co., Ltd.
Most cited
By later US patents
- Production of fat mixtures enriched with triglycerides bearing short, medium and long residues50US 5,380,544 ANabisco, Inc. · 1995
- Lipid comprising polyunsaturated fatty acids47US 8,816,111 B2Commonwealth Scientific and Industrial Research Organisation · 2014
- Process for producing polyunsaturated fatty acids in an esterified form45US 8,946,460 B2Commonwealth Scientific and Industrial Research Organisation · 2015
- Process for preparing soft centers in food products37US 5,362,508 ANabisco, Inc. · 1994
- Lipid comprising polyunsaturated fatty acids37US 9,550,718 B2Commonwealth Scientific and Industrial Research Organisation · 2017