Method to control the cooldown of main heat exchangers in liquefied natural gas plant
US-12181216-B2 · Dec 31, 2024 · US
Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F)
Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F) · 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 | F25J5/00 |
| Official title | Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F) |
| Display label | Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F) |
| Total patents | 67 |
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 | 4 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 11 |
| 2022 | 9 |
| 2023 | 4 |
| 2024 | 9 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical power producing device
US-12180885-B2 · Dec 31, 2024 · US
A hydrogen or helium throttling liquefaction system using direct current flow from the cold and hot ends of the regenerative cryocoolers
US-2024263871-A1 · Aug 8, 2024 · US
Process and apparatus for separating hydrocarbon
US-2024200869-A1 · Jun 20, 2024 · US
Method and apparatus for separating a synthesis gas by cryogenic distillation
US-11999622-B2 · Jun 4, 2024 · US
Heat exchange system and method of assembly
US-11859903-B2 · Jan 2, 2024 · US
Method and apparatus for separating air by cryogenic distillation
US-11852408-B2 · Dec 26, 2023 · US
Electrical power producing device
US-11828224-B1 · Nov 28, 2023 · US
Method and device for manufacturing liquid hydrogen by offshore off-grid superconducting wind turbine
US-2023341180-A1 · Oct 26, 2023 · US
Cryogenic air separation apparatus
US-11549747-B2 · Jan 10, 2023 · US
Process and apparatus for the separation of a mixture of hydrogen and carbon monoxide at low temperature
US-2022356060-A1 · Nov 10, 2022 · US
Dual mode Liquefied Natural Gas (LNG) liquefier
US-11493270-B2 · Nov 8, 2022 · US
Method for operating a heat exchanger, arrangement with a heat exchanger, and system with a corresponding arrangement
US-2022316811-A1 · Oct 6, 2022 · US
Heat exchange system and method of assembly
US-2022299263-A1 · Sep 22, 2022 · US
Process and plant for low-temperature fractionation of air
US-2022260312-A1 · Aug 18, 2022 · US
Heat exchange system and method of assembly
US-11391512-B2 · Jul 19, 2022 · US
Method to control the cooldown of main heat exchangers in liquefied natural gas plant
US-2022074654-A1 · Mar 10, 2022 · US
Method of designing heat exchanger group and processing plant
US-2022065538-A1 · Mar 3, 2022 · US
Methods and apparatus for improving multi-plate scraped heat exchangers
US-11215410-B2 · Jan 4, 2022 · US
Heat exchange system and method of assembly
US-11187467-B2 · Nov 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25J5/00?
- CPC F25J5/00 is the Cooperative Patent Classification code for “Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F).”
- How many patents are filed under CPC F25J5/00 (Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants (heat exchangers F28C, F28D, F28F))?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC F25J5/00 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).