Process for preparing ethylene carbonate and ethylene glycol using an alkyl iodide guard bed system
US-2020392101-A1 · Dec 17, 2020 · US
Ethylene carbonate
Ethylene carbonate · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D317/38 |
| Official title | Ethylene carbonate |
| Display label | Ethylene carbonate |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 12 |
| 2017 | 7 |
| 2018 | 13 |
| 2019 | 11 |
| 2020 | 17 |
| 2021 | 17 |
| 2022 | 16 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Peroxide stabilizers
US-10858249-B2 · Dec 8, 2020 · US
Heat integration in a process for the preparation of ethylene carbonate and ethylene glycol
US-10815176-B2 · Oct 27, 2020 · US
Electrolytic solution, electrochemical device, lithium ion secondary battery, and module
US-2020280096-A1 · Sep 3, 2020 · US
Prodrugs of glutamine analogs
US-10738066-B2 · Aug 11, 2020 · US
Hydrocarbon polymers comprising two exo-vinylene cyclic carbonate terminal groups
US-10723836-B2 · Jul 28, 2020 · US
Compositions and methods to produce alkoxylated triazine-arlhydroxy-aldehyde condensates
US-10640475-B2 · May 5, 2020 · US
Expandable composition comprising a cyclic carbonate and a base
US-2020102438-A1 · Apr 2, 2020 · US
Carbonate derivative production method
US-2020079723-A1 · Mar 12, 2020 · US
Electrolyte solution, electrochemical device, lithium ion secondary battery and module
US-2020028214-A1 · Jan 23, 2020 · US
Method for stabilizing high-purity ethylene carbonate-containing composition
US-2020020979-A1 · Jan 16, 2020 · US
Electrolytic solution, electrochemical device, lithium-ion secondary cell, and module
US-2020020982-A1 · Jan 16, 2020 · US
Novel prodrug compositions and utility of hydroxamate-based gcpii inhibitors
US-2019352255-A1 · Nov 21, 2019 · US
Prodrugs of glutamine analogs
US-2019315783-A1 · Oct 17, 2019 · US
Method and apparatus for quantitatively analyzing a gaseous process stream
US-2019317065-A1 · Oct 17, 2019 · US
Prodrugs of glutamine analogs
US-2019315784-A1 · Oct 17, 2019 · US
Radiation-sensitive resin composition, onium salt compound and method for forming resist pattern
US-2019285983-A1 · Sep 19, 2019 · US
Mg-doped ALUMINA AEROGEL AND MANUFACTURING METHOD THEREOF
US-2019262799-A1 · Aug 29, 2019 · US
Compounds having two or more exovinylene cyclocarbonate units
US-2019241538-A1 · Aug 8, 2019 · US
Prodrugs of glutamine analogs
US-10336778-B2 · Jul 2, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D317/38?
- CPC C07D317/38 is the Cooperative Patent Classification code for “Ethylene carbonate.”
- How many patents are filed under CPC C07D317/38 (Ethylene carbonate)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC C07D317/38 growing?
- Publication counts under this code: 9 in 2024 vs 13 in 2025 (latest complete years).