Class F25J : LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
Subclass 1/02: Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12253306 | Method and system for determining operating conditions of liquefied natural gas plant | May 27, 20 | Mar 18, 25 | Chiyoda Corporation |
| 12241692 | Method for operating a heat exchanger, arrangement with a heat exchanger, and system with a corresponding arrangement | Aug 18, 20 | Mar 04, 25 | Linde GMBH |
| 12228333 | System for transferring condensate | Jun 08, 21 | Feb 18, 25 | Saudi Arabian Oil Company |
| 12228898 | Method for monitoring a process engineering installation, and process engineering installation | Oct 05, 20 | Feb 18, 25 | Linde GMBH |
| 12215921 | Photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and use method | Jan 13, 23 | Feb 04, 25 | HANGZHOU OXYGEN PLANT GROUP CO., LTD. |
| 12203700 | Cooling and/or liquefying method and system | Jul 08, 20 | Jan 21, 25 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 12203875 | Apparatus to directly detect solids formation | Mar 27, 20 | Jan 21, 25 | THE UNIVERSITY OF WESTERN AUSTRALIA |
| 12202589 | Power supply and cooling system for a floating structure | Dec 13, 21 | Jan 21, 25 | GAZTRANSPORT ET TECHNIGAZ |
| 12188718 | Method and controller for controlling a continuous process | Nov 10, 17 | Jan 07, 25 | WOODSIDE ENERGY TECHNOLOGIES PTY LTD. |
| 12186699 | Cryogen chamber with adsorber | Jul 09, 24 | Jan 07, 25 | LUNAR HELIUM-3 MINING, LLC |
| 12181214 | Methods and configurations for LNG liquefaction | Oct 26, 21 | Dec 31, 24 | JTurbo Engineering & Technology, LLC |
| 12181215 | Hydrogen liquefier | Dec 06, 21 | Dec 31, 24 | Air Products and Chemicals, Inc. |
| 12181216 | Method to control the cooldown of main heat exchangers in liquefied natural gas plant | Aug 11, 21 | Dec 31, 24 | Honeywell LNG LLC |
| 12163735 | Systems for liquefaction of natural gas | Apr 02, 24 | Dec 10, 24 | STEELHEAD LNG (ASLNG) LTD. |
| 12163736 | Mixed refrigerant hydrogen liquefaction device and method of using same | Aug 31, 22 | Dec 10, 24 | HANGZHOU OXYGEN PLANT GROUP CO., LTD. |
| 12158302 | Apparatus and systems for liquefaction of natural gas | Mar 12, 24 | Dec 03, 24 | STEELHEAD LNG (ASLNG) LTD. |
| 12158301 | Apparatus and systems for liquefaction of natural gas | Feb 20, 24 | Dec 03, 24 | STEELHEAD LNG (ASLNG) LTD. |
| 12152729 | Systems and methods for transporting liquefied natural gas | Mar 02, 17 | Nov 26, 24 | The Lisbon Group, LLC |
| 12135165 | Method for liquefying natural gas with improved circulation of a mixed refrigerant stream | Jul 21, 20 | Nov 05, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 12123645 | Installation and method for purifying and liquefying natural gas | Sep 12, 19 | Oct 22, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0084,774 | HEAT RECOVERY IN A LNG PLANT | Jul 27, 22 | Mar 13, 25 | Not available |
| 2025/0075,972 | DEVICE AND METHOD FOR LIQUEFYING A GAS | Dec 21, 22 | Mar 06, 25 | Not available |
| 2025/0060,153 | System and Method for Precooling a Hydrogen Feed Stream with Concurrent Nitrogen Liquefaction | Aug 17, 23 | Feb 20, 25 | Not available |
| 2025/0060,154 | System and Method for Turndown of a Hydrogen Precooling and/or Hydrogen Liquefaction System | Aug 17, 23 | Feb 20, 25 | Not available |
| 2025/0060,155 | Apparatus and Process for Pre-Liquefaction Fluid Processing for Improved Liquefaction Operations | Aug 16, 23 | Feb 20, 25 | Air Products and Chemicals, Inc. |
| 2025/0060,156 | Apparatus and Process for Pre-Liquefaction Fluid Processing for Improved Liquefaction Operations | Aug 16, 23 | Feb 20, 25 | Air Products and Chemicals, Inc. |
| 2025/0059,035 | METHOD FOR PRODUCING LIQUEFIED CARBON DIOXIDE FROM LIQUEFIED NATURAL GAS | Aug 15, 23 | Feb 20, 25 | Not available |
| 2025/0052,491 | APPARATUS AND SYSTEMS FOR LIQUEFACTION OF NATURAL GAS | Oct 24, 24 | Feb 13, 25 | STEELHEAD LNG (ASLNG) LTD. |
| 2025/0052,492 | SYSTEM AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS | Oct 24, 24 | Feb 13, 25 | STEELHEAD LNG (ASLNG) LTD. |
| 2025/0044,023 | LNG LIQUEFACTION SYSTEM AND PROCESS | Aug 01, 24 | Feb 06, 25 | Not available |
| 2025/0035,375 | Method for liquefying a methane-rich gas to be processed, and corresponding facility | Dec 05, 22 | Jan 30, 25 | Not available |
| 2025/0035,374 | NATURAL GAS LIQUEFACTION AND PROCESSING USING GEOTHERMAL ENERGY | Jul 25, 23 | Jan 30, 25 | Not available |
| 2025/0020,399 | BLOW-DOWN METHOD OF RELIQUEFACTION SYSTEM FOR SHIP | Dec 27, 21 | Jan 16, 25 | Not available |
| 2025/0020,398 | SHIP BOIL-OFF GAS RELIQUEFACTION SYSTEM AND METHOD | Dec 27, 21 | Jan 16, 25 | Not available |
| 2025/0012,220 | METHOD OF CONTROLLING THE RENEWABLE ENERGY USE IN AN LNG TRAIN | Nov 04, 22 | Jan 09, 25 | Not available |
| 2025/0012,222 | GAS TURBINE PLANT, METHOD FOR OPERATING SAME, AND METHOD FOR MODIFYING SAME | Apr 05, 22 | Jan 09, 25 | Not available |
| 2025/0003,676 | INSTALLATION AND METHOD FOR LIQUEFYING A CRYOGENIC FLUID | Jun 28, 24 | Jan 02, 25 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0418,437 | Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles | Jun 16, 23 | Dec 19, 24 | Evergreen Cryogenics Inc. |
| 2024/0418,438 | GAS REPLACEMENT METHOD FOR EXPANDER OF CRYOCOOLER, CRYOCOOLER, AND GAS REPLACEMENT PIPE | Jun 12, 24 | Dec 19, 24 | Sumitomo Heavy Industries Ltd. |
| 2024/0410,646 | SYSTEM AND METHOD FOR REMOVING NATURAL GAS LIQUIDS FROM RICH GAS | Aug 20, 24 | Dec 12, 24 | Not available |
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