B01J 2231/49
Esterification or transesterification
B01J2231/49 (Esterification or transesterification) appears on 168 US grants and 195 published applications in this corpus.
Search patents in B01J- Granted patents
- 168
- Published applications
- 195
- Assignees
- 161
- Inventors
- 628
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 4 |
| 2009 | 0 | 4 |
| 2010 | 5 | 6 |
| 2011 | 1 | 2 |
| 2012 | 3 | 6 |
| 2013 | 7 | 8 |
| 2014 | 4 | 3 |
| 2015 | 7 | 14 |
| 2016 | 5 | 11 |
| 2017 | 14 | 19 |
| 2018 | 13 | 12 |
| 2019 | 12 | 14 |
| 2020 | 10 | 13 |
| 2021 | 11 | 18 |
| 2022 | 7 | 6 |
| 2023 | 8 | 21 |
| 2024 | 10 | 8 |
| 2025 | 6 | 10 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing ester-based composition11 Aug 2026US 12,703,675 B2LG Chem.Ltd.
- Supported catalyst and method for synthesizing sucrose-6-ester7 Jul 2026US 12,673,314 B2Anhui Jinhe Industrial Co., Ltd.
- Method for preparing ester-based composition16 Jun 2026US 12,655,086 B2LG Chem.Ltd.
- Method of preparing heterogeneous linear carbonate using catalyst having excellent solubility12 May 2026US 12,623,994 B2Lotte Chemical Corporation
- Method of preparing heterogeneous linear carbonate using amine-based compound catalyst12 May 2026US 12,623,995 B2Lotte Chemical Corporation
- A catalyst composition for improving time to reach high esterification conversion of carboxylic acids/anhydrides6 Aug 2026US 2026/0225089 A1Wisconsin Alumni Research Foundation
- Tocopherol derivative, preparation method therefor, and use thereof4 Jun 2026US 2026/0152477 A1Shanghai Coachchem Technology Co., Ltd.
- Preparation Method and Application of Imidazole-Functionalized Metal-Organic Framework Material Im RE-MOF With Lipase-Mimetic Catalytic Activity30 Apr 2026US 2026/0116898 A1Jiangnan University
- Apparatus and systems for improved alkyl ester production from feedstocks containing organic acids using low pressure alkylation19 Mar 2026US 2026/0078077 A1Inventure Renewables, Inc.
- Method for (trans)esterification of (meth)acrylate compounds using strong basic catalysts8 Jan 2026US 2026/0008744 A1Evonik Operations GmbH
Most cited
By later US patents
- Esterification catalysts and processes therefor and therewith42US 6,166,170 AE. I. Du Pont de Nemours and Company · 2000
- Method for producing a liquid formulation of tetraphenylphosphonium phenolate23US 6,291,630 B1Bayer Aktiengesellschaft · 2001
- Biochar products and method of manufacture thereof23US 8,986,581 B2Carbron Basis Company Ltd. · 2015
- Biochar products and method of manufacture thereof23US 9,968,911 B22018
- Solid catalyst system for biodiesel production22US 7,906,665 B2Claytec, Inc. · 2011