C07C 68/00
Preparation of esters of carbonic or haloformic acids
C07C68/00 (Preparation of esters of carbonic or haloformic acids) appears on 902 US grants and 559 published applications in this corpus.
Search patents in C07C- Granted patents
- 902
- Published applications
- 559
- Assignees
- 304
- Inventors
- 1,628
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 20 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 17 | 0 |
| 1987 | 15 | 0 |
| 1988 | 7 | 0 |
| 1989 | 13 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 21 | 0 |
| 1993 | 39 | 0 |
| 1994 | 31 | 0 |
| 1995 | 33 | 0 |
| 1996 | 35 | 0 |
| 1997 | 18 | 0 |
| 1998 | 24 | 0 |
| 1999 | 28 | 0 |
| 2000 | 27 | 0 |
| 2001 | 32 | 12 |
| 2002 | 45 | 25 |
| 2003 | 27 | 32 |
| 2004 | 20 | 18 |
| 2005 | 15 | 25 |
| 2006 | 14 | 12 |
| 2007 | 5 | 36 |
| 2008 | 13 | 28 |
| 2009 | 22 | 38 |
| 2010 | 25 | 22 |
| 2011 | 16 | 24 |
| 2012 | 16 | 25 |
| 2013 | 21 | 20 |
| 2014 | 18 | 21 |
| 2015 | 26 | 24 |
| 2016 | 26 | 17 |
| 2017 | 22 | 28 |
| 2018 | 14 | 25 |
| 2019 | 16 | 17 |
| 2020 | 18 | 16 |
| 2021 | 13 | 14 |
| 2022 | 7 | 18 |
| 2023 | 8 | 17 |
| 2024 | 10 | 18 |
| 2025 | 14 | 20 |
| 2026 | 11 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for the preparation of 2-cyanoethyl (4s)-4-(4-cyano-2-methoxy-phenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate by resolution of racemates by means of diastereomeric tartaric acid esters15 Sep 2026US 12,735,415 B2Bayer Aktiengesellschaft
- Continuous process for the synthesis of dimethyl carbonate over a cerium-based catalyst formulation7 Jul 2026US 12,673,914 B2Council of Scientific and Industrial Research
- Method of producing carbonyl compound and flow type reaction system of producing carbonyl compound23 Jun 2026US 12,662,447 B2FUJIFILM Corporation
- Apparatus and method of producing dimethyl carbonate by reactive distillation using hybrid heat integration16 Jun 2026US 12,655,087 B2
- Method for recovering raw and auxiliary materials in the production of lithium bis(fluorosulfonyl)imide9 Jun 2026US 12,649,659 B2Catl-Sicong Novel Materials Co., Ltd
- Process for the production of caboxylic acids and carbonyl compounds by utilizing carbon dioxide-rich feedstock1 Oct 2026US 2026/0297010 A1
- Method for producing carbonate having ethyl group and apparatus for producing carbonate having ethyl group1 Oct 2026US 2026/0297015 A1Asahi Kasei Kabushiki Kaisha
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
- Method for producing carbonyl halide28 May 2026US 2026/0145949 A1Mitsubishi Gas Chemical Company, Inc.
- Electrochemical reactor and method for producing oxygen-containing organic material16 Apr 2026US 2026/0103808 A1Sekisui Chemical Co., Ltd.
Most cited
By later US patents
- Polycarbonate transesterification process201US 4,217,438 AGeneral Electric Company · 1980
- Poly(carbonates)176US 4,079,038 AAlza Corporation · 1978
- Process for making modulators of cystic fibrosis transmembrane conductance regulator83US 8,476,442 B2Vertex Pharmaceutical Incorporated · 2013
- Depolymerization process82US 5,386,055 AThe University of Akron · 1995
- Supported catalysts containing a platinum metal and process for preparing diaryl carbonates75US 6,548,445 B1Bayer Aktiengesellschaft · 2003