Method for recovering n from a liquid waste stream
US-11498857-B2 · Nov 15, 2022 · US
Membrane extraction
Membrane extraction · 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 | B01D61/246 |
| Official title | {Membrane extraction} |
| Display label | Membrane extraction |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 5 |
| 2020 | 14 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Membrane separation system, and uses thereof
US-11401251-B2 · Aug 2, 2022 · US
Process for preparing an ester by alkoxycarbonylation
US-11365171-B2 · Jun 21, 2022 · US
Gasless extra-corporeal carbon dioxide removal
US-11298447-B2 · Apr 12, 2022 · US
Membrane separation system, and uses thereof
US-2022089556-A1 · Mar 24, 2022 · US
Composite ionomer membrane tubing modules and system and methods incorporating same
US-11273413-B2 · Mar 15, 2022 · US
Fluid Purification Filters And The Method of Fluid Purification Using The Same
US-2022054983-A1 · Feb 24, 2022 · US
Phosphorus extraction and recovery system (PEARS)
US-11104617-B2 · Aug 31, 2021 · US
Improving the sensory quality profile of plant protein based compositions
US-2021235721-A1 · Aug 5, 2021 · US
Method for recovering n from a liquid waste stream
US-2021198125-A1 · Jul 1, 2021 · US
Process for preparing carboxylic acids or salts thereof from hydrocarbons
US-11008275-B2 · May 18, 2021 · US
Separation methods and systems for oxidative coupling of methane
US-11001543-B2 · May 11, 2021 · US
Integration of cold solvent and acid gas removal
US-11000797-B2 · May 11, 2021 · US
Methods and systems for quantification of blood-brain barrier permeation of glycosylated peptides
US-10874334-B1 · Dec 29, 2020 · US
Process for preparing carboxylic acids or salts thereof from hydrocarbons
US-2020392062-A1 · Dec 17, 2020 · US
Process for preparing an ester by alkoxycarbonylation
US-2020392064-A1 · Dec 17, 2020 · US
System and method for extracting ions without utilizing ion exchange
US-2020360860-A1 · Nov 19, 2020 · US
Particle separation and/or purification of a fluid
US-10792618-B2 · Oct 6, 2020 · US
Gasless extra-corporeal carbon dioxide removal
US-2020246530-A1 · Aug 6, 2020 · US
Process for the separation of organic compounds
US-10730022-B2 · Aug 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D61/246?
- CPC B01D61/246 is the Cooperative Patent Classification code for “Membrane extraction.”
- How many patents are filed under CPC B01D61/246 (Membrane extraction)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC B01D61/246 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).