Higher secondary alcohol alkoxylate precursor, higher secondary alcohol alkoxylate adduct and higher secondary alkyl ether sulfate ester salt, and methods for producing these
US-12570592-B2 · Mar 10, 2026 · US
by liquid-liquid treatment
by liquid-liquid treatment · 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 | C07C41/38 |
| Official title | by liquid-liquid treatment |
| Display label | by liquid-liquid treatment |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for producing hydrofluoroethers
US-2025388526-A1 · Dec 25, 2025 · US
Preparation of halogenated alkoxyethane
US-12479785-B2 · Nov 25, 2025 · US
Method for extracting fluorine-containing ether compound
US-2025236579-A1 · Jul 24, 2025 · US
Ion-conducting bio-based polymers from raw lignocellulosic biomass
US-12291592-B2 · May 6, 2025 · US
Supercritical ethylene extraction process for selectively recovering phenolic compounds from bio-crude and/or bio-oil
US-2025051253-A1 · Feb 13, 2025 · US
Method for producing composition containing purified fluorine-containing ether compound
US-2025042830-A1 · Feb 6, 2025 · US
Purification process
US-2024286986-A1 · Aug 29, 2024 · US
Seaweed extracts, isolated compounds, and methods of treatment
US-2024226211-A9 · Jul 11, 2024 · US
Seaweed extracts, isolated compounds, and methods of treatment
US-2024131097-A1 · Apr 25, 2024 · US
Methods for preparing and purifying environmentally compatible detergents
US-2024010590-A1 · Jan 11, 2024 · US
Process and facility for recovering methoxypropanols from an aqueous stream
US-11697631-B2 · Jul 11, 2023 · US
Process and facility for recovering methoxypropanols from an aqueous stream
US-2023122837-A1 · Apr 20, 2023 · US
Bio-based polymers from raw lignocellulosic biomass
US-2023113164-A1 · Apr 13, 2023 · US
Oxygen stripping in etherification, ethers decomposition and isooctene production
US-11623906-B2 · Apr 11, 2023 · US
Preparation of halogenated alkoxyethane
US-2023053833-A1 · Feb 23, 2023 · US
Preparation of halogenated alkoxyethane
US-2023041468-A1 · Feb 9, 2023 · US
Bio-based polymers from raw lignocellulosic biomass
US-11525024-B2 · Dec 13, 2022 · US
Co-production of high purity isobutane and butene-1 from mixed C4s
US-11505512-B2 · Nov 22, 2022 · US
Higher secondary alcohol alkoxylate precursor, higher secondary alcohol alkoxylate adduct and higher secondary alkyl ether sulfate ester salt, and methods for producing these
US-2022324781-A1 · Oct 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C41/38?
- CPC C07C41/38 is the Cooperative Patent Classification code for “by liquid-liquid treatment.”
- How many patents are filed under CPC C07C41/38 (by liquid-liquid treatment)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC C07C41/38 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).