Pretreatment and pre-cooling of natural gas by high pressure compression and expansion
US-11536510-B2 · Dec 27, 2022 · US
Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself
Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself · 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 | F25J1/025 |
| Official title | {Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself} |
| Display label | Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 13 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 11 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for removal of moisture from LNG refrigerant
US-11415348-B2 · Aug 16, 2022 · US
Apparatus for liquefying natural gas and method for liquefying natural gas
US-11340013-B2 · May 24, 2022 · US
Method and filling device for filling a transport tank
US-2022082210-A1 · Mar 17, 2022 · US
Natural Gas Liquefaction By A High Pressure Expansion Process
US-2022074652-A1 · Mar 10, 2022 · US
Cooling method for liquefying a feed gas
US-2021381756-A1 · Dec 9, 2021 · US
Systems and Methods of Removing Contaminants in a Liquid Nitrogen Stream Used to Liquefy Natural Gas
US-2021364229-A1 · Nov 25, 2021 · US
Gas recovery system for compressor, compressor system, and refrigeration cycle system
US-11067320-B2 · Jul 20, 2021 · US
Increasing efficiency in an LNG production system by pre-cooling a natural gas feed stream
US-11060791-B2 · Jul 13, 2021 · US
Pretreatment, Pre-Cooling, and Condensate Recovery of Natural Gas By High Pressure Compression and Expansion
US-2021088274-A1 · Mar 25, 2021 · US
A thermodynamic system containing a fluid, and method for reducing pressure therein
US-2021063082-A1 · Mar 4, 2021 · US
Large-scale hydrogen liquefaction by means of a high pressure hydrogen refrigeration cycle combined to a novel single mixed-refrigerant precooling
US-10928127-B2 · Feb 23, 2021 · US
Cooling system
US-2020400371-A1 · Dec 24, 2020 · US
Hydrogen-neon mixture refrigeration cycle for large-scale hydrogen cooling and liquefaction
US-10837700-B2 · Nov 17, 2020 · US
Refrigerant recovery in natural gas liquefaction processes
US-10788260-B2 · Sep 29, 2020 · US
Methods for Removal of Moisture from LNG Refrigerant
US-2020240705-A1 · Jul 30, 2020 · US
Methods for Removal of Moisture from LNG Refrigerant
US-2020240687-A1 · Jul 30, 2020 · US
Systems and Methods for Using Multiple Cryogenic Hydraulic Turbines
US-2020232704-A1 · Jul 23, 2020 · US
Apparatus for liquefying natural gas and method for liquefying natural gas
US-2020208910-A1 · Jul 2, 2020 · US
Method and device for low-temperature cooling/liquefaction
US-10690406-B2 · Jun 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25J1/025?
- CPC F25J1/025 is the Cooperative Patent Classification code for “Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself.”
- How many patents are filed under CPC F25J1/025 (Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC F25J1/025 growing?
- Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).