Enhanced hydrogen recovery utilizing gas separation membranes integrated with pressure swing adsorption unit and/or cryogenic separation system
US-12589994-B2 · Mar 31, 2026 · US
Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F25J3/062 |
| Official title | {Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature} |
| Display label | Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 7 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Simultaneous carbon dioxide and hydrogen recovery from the tail gas stream of a sulfur recovery unit
US-2026048362-A1 · Feb 19, 2026 · US
Method for separating hydrogen and nitrogen from cracked ammonia
US-12552668-B2 · Feb 17, 2026 · US
Method and apparatus for separating carbon dioxide from a residual gas in a fluidised bed catalytic cracking plant (FCC)
US-12551840-B2 · Feb 17, 2026 · US
Process and Apparatus for Cracking Ammonia
US-2025296836-A1 · Sep 25, 2025 · US
Process and apparatus for separating co2 from a feed stream containing co2, at least one lighter component and at least one heavier component
US-2025085051-A1 · Mar 13, 2025 · US
Method for separating hydrogen and nitrogen from cracked ammonia
US-2024208813-A1 · Jun 27, 2024 · US
Method and system for separating a feed flow
US-2023266060-A1 · Aug 24, 2023 · US
Reforming system connected with a raw material gas vaporization system
US-11614280-B2 · Mar 28, 2023 · US
Method and apparatus for separating carbon dioxide from a residual gas in a fluidised bed catalytic cracking plant (fcc)
US-2023023477-A1 · Jan 26, 2023 · US
Process and apparatus for separating carbon dioxide from a waste gas of a fluid bed catalytic cracking (FCC) installation
US-11541348-B2 · Jan 3, 2023 · US
Cryogenic carbon capture and energy storage
US-2022349650-A1 · Nov 3, 2022 · US
Paraffin dehydrogenation process and apparatus
US-11447707-B2 · Sep 20, 2022 · US
Enhanced hydrogen recovery utilizing gas separation membranes integrated with pressure swing adsorption unit and/or cryogenic separation system
US-2022219978-A1 · Jul 14, 2022 · US
Paraffin dehydrogenation process and apparatus
US-2022195319-A1 · Jun 23, 2022 · US
Membrane capture of co2 from refinery emissions
US-2022168686-A1 · Jun 2, 2022 · US
Process and apparatus for separating carbon dioxide from a waste gas of a fluid bed catalytic cracking (fcc) installation
US-2021187435-A1 · Jun 24, 2021 · US
Reforming system connected with a raw material gas vaporization system
US-2021140706-A1 · May 13, 2021 · US
Method for fractionating a stream of cracked gas to obtain an ethylene-rich cut and a stream of fuel, and related installation
US-10767924-B2 · Sep 8, 2020 · US
Gas recovery system, compressor system, and refrigeration cycle system
US-10337779-B2 · Jul 2, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25J3/062?
- CPC F25J3/062 is the Cooperative Patent Classification code for “Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature.”
- How many patents are filed under CPC F25J3/062 (Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F25J3/062 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).