Hydrogen separation filter and method for manufacturing hydrogen separation filter
US-12371321-B2 · Jul 29, 2025 · US
characterised by the membrane
characterised by the membrane · 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 | C01B2210/0012 |
| Official title | characterised by the membrane |
| Display label | characterised by the membrane |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 9 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of recycling helium from waste gas in semiconductor process
US-2025122079-A1 · Apr 17, 2025 · US
Hybrid post-combustion CO2 capture system and method
US-11938443-B2 · Mar 26, 2024 · US
Separation and recovery method for boron trifluoride and complex thereof in olefin polymerization reaction
US-2024002243-A1 · Jan 4, 2024 · US
Graphene Oxide-Nanoparticle Composite Membranes, Preparation and Uses Thereof
US-2023241558-A1 · Aug 3, 2023 · US
Hydrogen separation filter and method for manufacturing hydrogen separation filter
US-2023212008-A1 · Jul 6, 2023 · US
Helium recovery from gaseous streams
US-11325066-B2 · May 10, 2022 · US
Graphene nanowindow structure and method for producing highly pure gas
US-11278849-B2 · Mar 22, 2022 · US
Nitrous oxide purification method
US-2021309520-A1 · Oct 7, 2021 · US
Energy efficient membrane-based process for CO2 capture
US-11117092-B2 · Sep 14, 2021 · US
Hybrid post-combustion co2 capture system and method
US-2021245092-A1 · Aug 12, 2021 · US
Graphene nanowindow structure and method for producing highly pure gas
US-2021060499-A1 · Mar 4, 2021 · US
CO2 separation device in gas and its membrane separation method and method for controlling membrane separation of CO2 separation device in gas
US-10913027-B2 · Feb 9, 2021 · US
Helium recovery from gaseous streams
US-2021031139-A1 · Feb 4, 2021 · US
Inert gas generating system
US-10874980-B2 · Dec 29, 2020 · US
Helium recovery from gaseous streams
US-10765995-B2 · Sep 8, 2020 · US
Energy efficient membrane-based process for co2 capture
US-2019282952-A1 · Sep 19, 2019 · US
Thermally rearranged polymer gas separation membrane having fluorinated cross-linked structure, and preparation method therefor
US-2019247784-A1 · Aug 15, 2019 · US
Composite Membranes
US-2019105612-A1 · Apr 11, 2019 · US
Catalytic layer and use thereof in oxygen-permeable membranes
US-10213735-B2 · Feb 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2210/0012?
- CPC C01B2210/0012 is the Cooperative Patent Classification code for “characterised by the membrane.”
- How many patents are filed under CPC C01B2210/0012 (characterised by the membrane)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC C01B2210/0012 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).