Hydrogen purification by adsorption
US-12570528-B2 · Mar 10, 2026 · US
Zeolites
Zeolites · 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 | C01B2210/0018 |
| Official title | Zeolites |
| Display label | Zeolites |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and hydrogen purification method using the same
US-12508535-B2 · Dec 30, 2025 · US
Separation of krypton gas from xenon gas using natural clinoptilolite
US-12421115-B1 · Sep 23, 2025 · US
Carbon dioxide capture with system of contactors each having fluidically-isolated, thermally-connected, parallel fluid domains
US-12357941-B2 · Jul 15, 2025 · US
Separations for methane pyrolysis
US-2025206608-A1 · Jun 26, 2025 · US
Method of recycling helium from waste gas in semiconductor process
US-2025122079-A1 · Apr 17, 2025 · US
Method for preparing hydrogen gas
US-12275639-B2 · Apr 15, 2025 · US
Flue gas decarbonization
US-12179143-B2 · Dec 31, 2024 · US
Hydrogen Purification By Adsorption
US-2024390835-A1 · Nov 28, 2024 · US
Gis-type zeolite, adsorbent, and separation method
US-2024382926-A1 · Nov 21, 2024 · US
Carbon dioxide capture with system of contactors each having fluidically-isolated, thermally-connected, parallel fluid domains
US-2024367093-A1 · Nov 7, 2024 · US
Carbon dioxide capture with contactor having fluidically-isolated, thermally-connected, parallel fluid domains
US-2024359131-A1 · Oct 31, 2024 · US
Carbon dioxide adsorbent, manufacturing method of the same, device and process using the same
US-2024286108-A1 · Aug 29, 2024 · US
Carbon dioxide capture system and method of capturing carbon dioxide
US-12059648-B2 · Aug 13, 2024 · US
Process and apparatus to recover helium
US-2024217821-A1 · Jul 4, 2024 · US
Pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and hydrogen purification method using the same
US-2024100469-A1 · Mar 28, 2024 · US
Process for separation of hydrogen and oxygen
US-11850546-B2 · Dec 26, 2023 · US
Method for preparing hydrogen gas
US-2023286800-A1 · Sep 14, 2023 · US
Flue Gas Decarbonization
US-2023233986-A1 · Jul 27, 2023 · US
Potassium-merlinoite zeolite, its synthesis and use
US-11638909-B2 · May 2, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2210/0018?
- CPC C01B2210/0018 is the Cooperative Patent Classification code for “Zeolites.”
- How many patents are filed under CPC C01B2210/0018 (Zeolites)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC C01B2210/0018 growing?
- Publication counts under this code: 9 in 2024 vs 6 in 2025 (latest complete years).