Method for producing conjugated diene polymer
US-2021395421-A1 · Dec 23, 2021 · US
Saturated ethers
Saturated ethers · 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 | C07C43/04 |
| Official title | Saturated ethers |
| Display label | Saturated ethers |
| Total patents | 99 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 11 |
| 2019 | 10 |
| 2020 | 5 |
| 2021 | 9 |
| 2022 | 6 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Selective dimerization and etherification of isobutylene via catalytic distillation
US-2021395178-A1 · Dec 23, 2021 · US
Etherification Process
US-2021363084-A1 · Nov 25, 2021 · US
Metal corrosion inhibitor
US-11168402-B2 · Nov 9, 2021 · US
Systems and processes for efficient production of one or more fuel additives
US-11161796-B2 · Nov 2, 2021 · US
Systems and processes for efficient production of one or more fuel additives
US-2021246088-A1 · Aug 12, 2021 · US
Process
US-2021163389-A1 · Jun 3, 2021 · US
Metal corrosion inhibitor
US-2021156035-A1 · May 27, 2021 · US
Process for producing dimethoxymethane oligomers
US-10988564-B2 · Apr 27, 2021 · US
Process for obtaining high-purity 1-butene from C4 hydrocarbon mixtures
US-10774020-B2 · Sep 15, 2020 · US
Fragrance material
US-10774289-B2 · Sep 15, 2020 · US
Ether compounds and related compositions
US-2020239801-A1 · Jul 30, 2020 · US
Ether compounds and related compositions
US-10669499-B2 · Jun 2, 2020 · US
Chemical liquid purification method and chemical liquid
US-2020164294-A1 · May 28, 2020 · US
Lithium salt compound, nonaqueous electrolyte solution using same, lithium ion secondary battery and lithium ion capacitor
US-10446871-B2 · Oct 15, 2019 · US
Synthesis of monoethers of sugar comprising a long alkyl chain and uses thereof as a surfactant
US-10442830-B2 · Oct 15, 2019 · US
Process for producing dimethoxymethane oligomers
US-2019276579-A1 · Sep 12, 2019 · US
Process for producing diisopropyl ether from high purity propylene
US-10392331-B2 · Aug 27, 2019 · US
Process for producing diisopropyl ether from high purity propylene
US-10392330-B2 · Aug 27, 2019 · US
Process for producing diisopropyl ether from high purity propylene
US-10377688-B2 · Aug 13, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C43/04?
- CPC C07C43/04 is the Cooperative Patent Classification code for “Saturated ethers.”
- How many patents are filed under CPC C07C43/04 (Saturated ethers)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC C07C43/04 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).