Filtering device, purification device, and method for manufacturing chemical liquid
US-2020368692-A1 · Nov 26, 2020 · US
One step being separation by permeation
One step being separation by permeation · 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 | B01D3/145 |
| Official title | {One step being separation by permeation} |
| Display label | One step being separation by permeation |
| Total patents | 156 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 12 |
| 2017 | 12 |
| 2018 | 9 |
| 2019 | 20 |
| 2020 | 20 |
| 2021 | 18 |
| 2022 | 12 |
| 2023 | 18 |
| 2024 | 12 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the recovery of ketones and glycols from fermentation
US-2020299218-A1 · Sep 24, 2020 · US
System and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud
US-2020179872-A1 · Jun 11, 2020 · US
Process for separation of propylene from a liquefied petroleum gas stream
US-2020001198-A1 · Jan 2, 2020 · US
Methods for separating wax products from hydrocarbon feedstreams
US-2019390126-A1 · Dec 26, 2019 · US
Process for separation of propylene from a liquefied petroleum gas stream
US-10507405-B1 · Dec 17, 2019 · US
Method for producing high concentration alcohol
US-2019352244-A1 · Nov 21, 2019 · US
Process for separation of propylene from a liquefied petroleum gas stream
US-10472306-B1 · Nov 12, 2019 · US
Process for separation of propylene from a liquefied petroleum gas stream
US-10471368-B1 · Nov 12, 2019 · US
Method for producing high-concentration alcohol
US-2019263741-A1 · Aug 29, 2019 · US
Method for condensing water-soluble organic matter and device for condensing water-soluble organic matter
US-10392329-B2 · Aug 27, 2019 · US
Oxidative dehydrogenation of alkanes to alkenes, and related system
US-2019248717-A1 · Aug 15, 2019 · US
Method and apparatus for purification of dimethyl carbonate using pervaporation
US-10377696-B2 · Aug 13, 2019 · US
Methods of filtering hydrocarbons from an aqueous mixture
US-2019209976-A1 · Jul 11, 2019 · US
Method for producing high-concentration alcohol
US-10329229-B2 · Jun 25, 2019 · US
Process and systems for obtaining 1,4-butanediol from fermentation broths
US-2019177255-A1 · Jun 13, 2019 · US
Process for making acrylic acid from dextrose
US-10308582-B2 · Jun 4, 2019 · US
Integrated system with an absorption refrigeration subsystem and a desalination subsystem
US-2019161366-A1 · May 30, 2019 · US
Process for the recovery of ketones and glycols from fermentation
US-2019135723-A1 · May 9, 2019 · US
Product management in biological conversion processes
US-10252183-B2 · Apr 9, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/145?
- CPC B01D3/145 is the Cooperative Patent Classification code for “One step being separation by permeation.”
- How many patents are filed under CPC B01D3/145 (One step being separation by permeation)?
- Our database includes 156 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/145 growing?
- Publication counts under this code: 12 in 2024 vs 18 in 2025 (latest complete years).