C07D 317/36
Alkylene carbonates
Official title: Alkylene carbonates; Substituted alkylene carbonates
C07D317/36 (Alkylene carbonates) appears on 338 US grants and 326 published applications in this corpus.
Search patents in C07D- Granted patents
- 338
- Published applications
- 326
- Assignees
- 238
- Inventors
- 1,007
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 1 |
| 2002 | 12 | 11 |
| 2003 | 7 | 5 |
| 2004 | 6 | 9 |
| 2005 | 3 | 11 |
| 2006 | 5 | 6 |
| 2007 | 4 | 10 |
| 2008 | 8 | 11 |
| 2009 | 6 | 6 |
| 2010 | 9 | 12 |
| 2011 | 2 | 13 |
| 2012 | 3 | 9 |
| 2013 | 5 | 12 |
| 2014 | 16 | 16 |
| 2015 | 9 | 13 |
| 2016 | 13 | 18 |
| 2017 | 18 | 15 |
| 2018 | 13 | 15 |
| 2019 | 12 | 23 |
| 2020 | 15 | 19 |
| 2021 | 12 | 23 |
| 2022 | 14 | 20 |
| 2023 | 13 | 15 |
| 2024 | 14 | 9 |
| 2025 | 9 | 13 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Spirocyclic compound containing catalyst for use in catalyzing reaction of epoxide compound and carbon dioxide5 May 2026US 12,616,964 B2Shenzhen Capchem Technology Co., Ltd.
- Cyclocarbonate group-containing (meth)acrylate monomer and polymer17 Mar 2026US 12,577,221 B2Nof Corporation
- 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
- Spirocyclic compound containing catalyst for use in catalyzing reaction of epoxide compound and carbon dioxide6 Aug 2026US 2026/0225086 A1Shenzhen Capchem Technology Co., Ltd.
- Non-aqueous electrolyte compositions16 Jul 2026US 2026/0204641 A1Faradion Limited
Most cited
By later US patents
- Batteries, conductive compositions, and conductive films containing organic liquid electrolytes and plasticizers154US 5,731,104 ASRI International · 1998
- Stereoselective ring opening reactions72US 5,929,232 APresident and Fellows of Harvard College · 1999
- Stereoselective ring opening reactions66US 5,665,890 APresident and Fellows of Harvard College · 1997
- Malonic acid monoesters and process for producing the same49US 7,553,989 B2Meiji Seika Kaisha, Ltd. · 2009
- Preparation of glyceryl carbonate43US 5,359,094 ABASF SE · 1994