Liquid-liquid extraction column with variable inter-tray space
US-2025058248-A1 · Feb 20, 2025 · US
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with stationary contacting elements
with stationary contacting elements · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D11/0449 |
| Official title | {with stationary contacting elements} |
| Display label | with stationary contacting elements |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Variable perforation liquid-liquid extraction column
US-2025058249-A1 · Feb 20, 2025 · US
Acoustically settled liquid-liquid sample purification system and method of use
US-11865475-B2 · Jan 9, 2024 · US
Liquid-liquid extraction unit and multistage liquid-liquid extraction apparatus using the same
US-2022305404-A1 · Sep 29, 2022 · US
Washing and desalting device, washing and desalting method, desalting and dehydrating system, and desalting and dehydrating method
US-11401472-B2 · Aug 2, 2022 · US
Phase separator and phase separation system including the same and phase separation method
US-2022062792-A1 · Mar 3, 2022 · US
Acoustically Settled Liquid-Liquid Sample Purification System and Method of Use
US-2022054954-A1 · Feb 24, 2022 · US
Acoustically settled liquid-liquid sample purification system
US-11173417-B2 · Nov 16, 2021 · US
Acoustically Settled Liquid-Liquid Sample Purification System
US-2020353378-A1 · Nov 12, 2020 · US
Washing and Desalting Device, Washing and Desalting Method, Desalting and Dehydrating System, and Desalting and Dehydrating Method
US-2020239788-A1 · Jul 30, 2020 · US
Acoustically settled liquid-liquid sample purification system
US-10610804-B2 · Apr 7, 2020 · US
Liquid-liquid extraction unit, multistage liquid-liquid extraction apparatus using the unit, and multistage continuous extraction system for rare earth elements
US-10407752-B2 · Sep 10, 2019 · US
Removal of radionuclides from mixtures
US-2018010208-A1 · Jan 11, 2018 · US
Acoustically settled liquid-liquid sample purification system
US-2017354901-A1 · Dec 14, 2017 · US
Solvent extraction settler arrangement
US-9731222-B2 · Aug 15, 2017 · US
Liquid-liquid extraction unit, multistage liquid-liquid extraction apparatus using the unit, and multistage continuous extraction system for rare earth elements
US-2016304986-A1 · Oct 20, 2016 · US
Water extraction using a directional solvent
US-9428404-B2 · Aug 30, 2016 · US
Device for collecting and separating aqueous and/or oily liquids and cryogenic liquid
US-9415327-B2 · Aug 16, 2016 · US
Solvent extraction settler arrangement
US-2015190734-A1 · Jul 9, 2015 · US
Process For Preparing Silicone Resins
US-2015105529-A1 · Apr 16, 2015 · US