Method for purification of electronic gases and a purification device for the method
US-2024082780-A1 · Mar 14, 2024 · US
with hollow fibres
with hollow fibres · 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 | B01D2053/224 |
| Official title | {with hollow fibres} |
| Display label | with hollow fibres |
| Total patents | 328 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 28 |
| 2016 | 35 |
| 2017 | 45 |
| 2018 | 33 |
| 2019 | 33 |
| 2020 | 25 |
| 2021 | 27 |
| 2022 | 27 |
| 2023 | 24 |
| 2024 | 26 |
| 2025 | 21 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Defect-free carbon molecular sieve membranes with enhanced selectivity and aging resistance and the method of making the same
US-2016367935-A1 · Dec 22, 2016 · US
Polyimide-based macromolecular compound and gas-separation asymmetrical hollow-fibre membrane comprising the same
US-9511320-B2 · Dec 6, 2016 · US
Ultra-selective carbon molecular sieve membranes and methods of making
US-2016346740-A1 · Dec 1, 2016 · US
Methods of Making Crosslinked Membranes Utilizing an Inert Gas Atmosphere
US-2016339397-A1 · Nov 24, 2016 · US
Systems, methods, and apparatuses related to vehicles with reduced emissions
US-9494064-B2 · Nov 15, 2016 · US
UV and thermally treated polymeric membranes
US-9492785-B2 · Nov 15, 2016 · US
High selectivity epoxysilicone-cross-linked polyimide membranes for gas separations
US-9480954-B2 · Nov 1, 2016 · US
High permeance membranes for gas separations
US-2016303521-A1 · Oct 20, 2016 · US
High selectivity epoxysilicone-cross-linked polyimide membranes for gas separations
US-2016271571-A1 · Sep 22, 2016 · US
Uv and thermally treated polymeric membranes
US-2016250585-A1 · Sep 1, 2016 · US
Hollow fiber module of a device for separating fluids and method for producing same
US-9427699-B2 · Aug 30, 2016 · US
Air-separation device, inerting device and aircraft comprising such a device
US-2016243496-A1 · Aug 25, 2016 · US
High temperature resistant epoxy resins for producing hollow fiber membrane modules for high temperature gas separation applications
US-2016236151-A1 · Aug 18, 2016 · US
Process for removing one or more sulfur compounds and an apparatus relating thereto
US-9393526-B2 · Jul 19, 2016 · US
Polyimide membrane for h2s removal
US-2016184771-A1 · Jun 30, 2016 · US
Method for separating organofluorine compounds using membrane
US-2016152536-A1 · Jun 2, 2016 · US
Composite carbon molecular sieve membranes having anti-substructure collapse particles loaded in a core thereof
US-2016151746-A1 · Jun 2, 2016 · US
Air separation module with increased permeate area
US-2016136570-A1 · May 19, 2016 · US
Counter-flow gas separation modules and methods
US-9340297-B2 · May 17, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2053/224?
- CPC B01D2053/224 is the Cooperative Patent Classification code for “with hollow fibres.”
- How many patents are filed under CPC B01D2053/224 (with hollow fibres)?
- Our database includes 328 publications tagged with this CPC code.
- Is patent activity under CPC B01D2053/224 growing?
- Publication counts under this code: 26 in 2024 vs 21 in 2025 (latest complete years).