ClassID:

160117

F25J1/0281 - CPC Classification

Classification description:

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process; Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used; Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander

Sub-classes:
Recent Application in this class:
#1
20250257939
2025-08-14

SYSTEMS AND METHODS FOR LNG REFRIGERATION AND LIQUEFACTION

#2
20230272971
2023-08-31

SINGLE MIXED REFRIGERANT LNG PRODUCTION PROCESS

#3
20230129424
2023-04-27

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#4
20230114229
2023-04-13

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#5
20220333855
2022-10-20

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS USING TWO DISTINCT REFRIGERATION CYCLES WITH AN INTEGRAL GEAR MACHINE

#6
20220307731
2022-09-29

SYSTEM, METHOD AND APPARATUS FOR THE REGENERATION OF NITROGEN ENERGY WITHIN A CLOSED LOOP CRYOGENIC SYSTEM

#7
20210341223
2021-11-04

COMPUTERIZED MONITORING SYSTEM FOR A TURBO-EXPANDER BRAKE COMPRESSOR

#8
20190249560
2019-08-15

Angular velocity stepping and methods of use in turbomachinery

#9
20190204006
2019-07-04

Systems and methods for LNG refrigeration and liquefaction

#10
20180313603
2018-11-01

APPARATUS AND METHOD FOR PRODUCING LIQUEFIED GAS

#11
20180306109
2018-10-25

Integrated power generation and compression train, and method

#12
20180292128
2018-10-11

Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration

#13
20170356677
2017-12-14

System, method and apparatus for the regeneration of nitrogen energy within a closed loop cryogenic system

#14
20160377084
2016-12-29

CENTRIFUGAL COMPRESSOR

#15
20160109180
2016-04-21

Apparatus and method for producing low-temperature compressed gas or liquefied gas

#16
20150020542
2015-01-22

Underwater gas field development methods and systems

#17
20150020541
2015-01-22

Methods and systems for underwater gas pressurization and liquefaction

#18
20140250911
2014-09-11

Power generation and LNG production

#19
20120036888
2012-02-16

METHOD AND SYSTEM FOR THE SMALL-SCALE PRODUCTION OF LIQUIFIED NATURAL GAS (LNG) AND COLD COMPRESSED GAS (CCNG) FROM LOW-PRESSURE NATURAL GAS

#20
20100154470
2010-06-24

Method and system for producing liquefied natural gas (LNG)

#21
20100011808
2010-01-21

METHOD AND APPARATUS FOR LIQUEFYING A HYDROCARBON STREAM

#22
20090282840
2009-11-19

ENERGY STORAGE AND GENERATION

#23
20090113928
2009-05-07

Method and system for the small-scale production of liquified natural gas (LNG) from low-pressure gas

#24
20060196226
2006-09-07

Method and system for condensation of unprocessed well stream from offshore gas or gas condensate field

#25
20060112725
2006-06-01

Natural gas liquefaction process