Ceramic base material, ceramic support, and separation membrane complex
US-2024399316-A1 · Dec 5, 2024 · US
Zeolites
Zeolites · 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 | B01D71/0281 |
| Official title | {Zeolites} |
| Display label | Zeolites |
| Total patents | 503 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 34 |
| 2016 | 33 |
| 2017 | 43 |
| 2018 | 39 |
| 2019 | 53 |
| 2020 | 54 |
| 2021 | 64 |
| 2022 | 47 |
| 2023 | 48 |
| 2024 | 44 |
| 2025 | 30 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous medium with adjustable fluid permeability and associated systems and methods
US-11872525-B2 · Jan 16, 2024 · US
Crosslinked polymer, method for producing the same, molecular sieve composition and material separation membranes
US-2016367948-A1 · Dec 22, 2016 · US
Ddr zeolite seed crystal, method for producing same, and method for producing ddr zeolite membrane
US-2016361691-A1 · Dec 15, 2016 · US
Membrane device and process for mass exchange, separation, and filtration
US-9492795-B2 · Nov 15, 2016 · US
Processes using molecular sieve SSZ-100
US-9468917-B2 · Oct 18, 2016 · US
Zeolite-like metal-organic framework membrane
US-2016296883-A1 · Oct 13, 2016 · US
Vacuum-assisted process for preparing an ion-exchanged zeolite membrane
US-2016279625-A1 · Sep 29, 2016 · US
Zeolite structure and manufacturing method thereof
US-9452936-B2 · Sep 27, 2016 · US
Compatibilized immiscible polymer blends and molecular sieve membranes thereof
US-2016263534-A1 · Sep 15, 2016 · US
High permeate flux reverse osmosis membrane including surface-treated zeolite and method of manufacturing the same
US-9415351-B2 · Aug 16, 2016 · US
Blood purification membrane, method for manufacturing blood purification membrane, and dialysis device
US-2016199789-A1 · Jul 14, 2016 · US
Ionic liquid grafted mesoporous silica compositions for polar gas/non-polar gas and olefin/paraffin separations
US-9370735-B2 · Jun 21, 2016 · US
Polyelectrolyte Multilayer Films for Gas Separation and Purification
US-2016114294-A1 · Apr 28, 2016 · US
Porous body and honeycomb-shaped ceramic separation-membrane structure
US-9321016-B2 · Apr 26, 2016 · US
Porous membrane and method for manufacturing the same
US-9314745-B2 · Apr 19, 2016 · US
Ceramic whole blood hollow fiber membrane filter medium and use thereof for separationg blood plasma/serum from whole blood
US-2016096148-A1 · Apr 7, 2016 · US
Film formed by secondary growth of seed crystals, three crystal axes of which had all been uniformly oriented on substrate
US-9290859-B2 · Mar 22, 2016 · US
Emission reduction from mobile sources by on-board carbon dioxide conversion to fuel
US-9267429-B2 · Feb 23, 2016 · US
Zeolitic imidazolate framework membranes and methods of making and using same for separation of C2− and C3+ hydrocarbons and separation of propylene and propane mixtures
US-9248400-B2 · Feb 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/0281?
- CPC B01D71/0281 is the Cooperative Patent Classification code for “Zeolites.”
- How many patents are filed under CPC B01D71/0281 (Zeolites)?
- Our database includes 503 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/0281 growing?
- Publication counts under this code: 44 in 2024 vs 30 in 2025 (latest complete years).