C07D 317/38
Ethylene carbonate
C07D317/38 (Ethylene carbonate) appears on 131 US grants and 141 published applications in this corpus.
Search patents in C07D- Granted patents
- 131
- Published applications
- 141
- Assignees
- 96
- Inventors
- 410
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 4 |
| 2003 | 0 | 3 |
| 2004 | 3 | 4 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 2 | 7 |
| 2009 | 4 | 3 |
| 2010 | 2 | 4 |
| 2011 | 2 | 8 |
| 2012 | 0 | 2 |
| 2013 | 1 | 8 |
| 2014 | 8 | 5 |
| 2015 | 4 | 3 |
| 2016 | 6 | 7 |
| 2017 | 4 | 3 |
| 2018 | 9 | 5 |
| 2019 | 1 | 13 |
| 2020 | 8 | 11 |
| 2021 | 7 | 12 |
| 2022 | 8 | 8 |
| 2023 | 7 | 7 |
| 2024 | 6 | 2 |
| 2025 | 4 | 11 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Peroxide stabilizers11 Aug 2026US 12,703,630 B2Diversey, Inc.
- Gas-liquid bubbling bed reactor, reaction system, and process for synthesizing carbonate ester21 Jul 2026US 12,685,982 B2China Petroleum & Chemical Corporation
- Monomers for non-isocyanate polyurethanes23 Jun 2026US 12,662,574 B2Alliance for Energy Innovation, LLC
- Catalysts for synthesizing cyclic carbonates, preparation methods and uses thereof23 Dec 2025US 12,502,661 B2Anhui Conch Material Technology Co., Ltd.
- Catalyst composition for cyclic carbonate production from CO2 and epoxides16 Dec 2025US 12,496,575 B2PTT Global Chemical Public Company Limited
- A method and plant for purifying ethylene carbonate8 Oct 2026US 2026/0308137 A1Sulzer Management AG
- A method and plant for purifying ethylene carbonate8 Oct 2026US 2026/0308138 A1Sulzer Management AG
- Method for electrochemically synthesizing alkylene carbonate13 Aug 2026US 2026/0234120 A1Seoul National University R&Db Foundation
- Method for synthesizing cyclic carbonate7 May 2026US 2026/0125354 A1Seoul National University R&Db Foundation
- Ionizable lipidoid compositions and therapeutic uses thereof9 Apr 2026US 2026/0098014 A1Flagship Pioneering Innovations Vii, LLC
Most cited
By later US patents
- Alkylene carbonate process38US 4,314,945 AUnion Carbide Corporation · 1982
- Ethylene glycol process37US 5,763,691 AMitsubishi Chemical Corporation · 1998
- Ethylene carbonate process32US 4,233,221 AThe Dow Chemical Company · 1980
- Process for the preparation of dialkyl carbonates31US 5,218,135 ABayer Aktiengesellschaft · 1993
- Process for the preparation of dialkyl carbonates25US 4,434,105 ABayer Aktiengesellschaft · 1984