Mixed-matrix membranes, composition and method
US-2025001369-A1 · Jan 2, 2025 · US
Perovskites
Perovskites · 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 | B01D71/0271 |
| Official title | {Perovskites} |
| Display label | Perovskites |
| Total patents | 62 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 7 |
| 2017 | 11 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cross-linked mixed-matrix membranes, composition and method
US-2024342662-A1 · Oct 17, 2024 · US
Ethylene production apparatus and ethylene production method
US-2024286976-A1 · Aug 29, 2024 · US
Direct air capture reactor systems and related methods of transporting carbon dioxide
US-2024252980-A1 · Aug 1, 2024 · US
Porous ceramic filtration membranes with tunable and multi-scale porosity
US-2024165567-A1 · May 23, 2024 · US
Separation and conversion of carbon dioxide to syngas using a porous ceramic dual membrane in a thermo-electrochemical reactor
US-11939686-B2 · Mar 26, 2024 · US
Nanostructured ceramic membranes for hydrogen isotope separation
US-2023382769-A1 · Nov 30, 2023 · US
Dual-layer hollow fiber membranes and methods of making and use
US-2023372901-A1 · Nov 23, 2023 · US
High temperature steam separation membrane
US-11617992-B2 · Apr 4, 2023 · US
Hydrogen isotope separation systems
US-2023017076-A1 · Jan 19, 2023 · US
Hydrogen isotope separation methods and systems
US-11433353-B2 · Sep 6, 2022 · US
High temperature steam separation membrane
US-2022250010-A1 · Aug 11, 2022 · US
Separation and conversion of carbon dioxide to syngas using a porous ceramic dual membrane in a thermo-electrochemical reactor
US-2022178036-A1 · Jun 9, 2022 · US
Segregation resistant perovskite oxides with surface modification
US-11179682-B2 · Nov 23, 2021 · US
Catalyst-containing oxygen transport membrane
US-11052353-B2 · Jul 6, 2021 · US
Continuous lateral pore grading for scalable efficiency of membranes in electrochemical applications
US-2021162351-A1 · Jun 3, 2021 · US
Catalytic membrane system for converting biomass to hydrogen
US-11008524-B2 · May 18, 2021 · US
Graphene-ceramic composite membrane for hydrogen separation membranes
US-10899613-B2 · Jan 26, 2021 · US
Hydrogen gas production device and hydrogen gas production method
US-10882005-B2 · Jan 5, 2021 · US
Hydrogen Isotope Separation Methods and Systems
US-2020384411-A1 · Dec 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/0271?
- CPC B01D71/0271 is the Cooperative Patent Classification code for “Perovskites.”
- How many patents are filed under CPC B01D71/0271 (Perovskites)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/0271 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).