Description
Class F25J : LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
Subclass 1/00: Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/00
Sub-Class
Stats
- 950 US PATENTS IN FORCE
- 387 US APPLICATIONS PENDING
- 228 Total Patent Owners
- 2,631 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12264124 | Methanol production process from syngas produced by catalytic partial oxidation integrated with cracking | Dec 31, 19 | Apr 01, 25 | ENI S.P.A. |
| 12253305 | LNG reforming system and method of controlling the same | Sep 21, 21 | Mar 18, 25 | Hyundai Motor Company; KIA CORPORATION; |
| 12253306 | Method and system for determining operating conditions of liquefied natural gas plant | May 27, 20 | Mar 18, 25 | Chiyoda Corporation |
| 12247706 | Boil-off gas reliquefaction system | Sep 08, 22 | Mar 11, 25 | HANWHA OCEAN CO., LTD. |
| 12246805 | Offshore LNG processing facility | Sep 18, 23 | Mar 11, 25 | NFE Patent Holdings LLC |
| 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 |
| 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. |
| 12209070 | Apparatus, compositions, and methods for making solid methane gas | Dec 21, 23 | Jan 28, 25 | SNG International LLC |
| 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. |
| 12179140 | Exhaust gas purification system and method and data processing system for monitoring at least one exhaust gas purification system | Nov 14, 19 | Dec 31, 24 | Dürr Systems AG |
| 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 |
| 12172144 | as solvent for organic polymers in a method for coating urea-containing granules | Jun 14, 19 | Dec 24, 24 | Thyssenkrupp Uhde GmbH; THYSSENKRUPP AG; |
| 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. |
Recent Publications
| 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 |
| 2025/0085,049 | APPARATUS AND METHOD FOR PRODUCING DRY ICE | Sep 12, 24 | Mar 13, 25 | Not available |
| 2025/0075,972 | DEVICE AND METHOD FOR LIQUEFYING A GAS | Dec 21, 22 | Mar 06, 25 | Not available |
| 2025/0075,973 | NATURAL GAS LIQUEFACTION PROCESS AND PLANT TO CARRY IT OUT | Jun 03, 24 | Mar 06, 25 | Universidad Nacional de Itapúa |
| 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. |
| 2025/0044,022 | CO2 Separation Systems and Methods | Oct 25, 24 | Feb 06, 25 | CARBONQUEST, INC. |
| 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 |
| 2025/0020,397 | METHODS OF SEPARATING CARBON DIOXIDE FROM FLUE GAS AND SEQUESTERING LIQUID CARBON DIOXIDE | Sep 27, 24 | Jan 16, 25 | Carbon Vault Technologies LLC |
| 2025/0020,399 | BLOW-DOWN METHOD OF RELIQUEFACTION SYSTEM FOR SHIP | Dec 27, 21 | Jan 16, 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 |
| 2025/0011,258 | SYSTEMS AND METHODS FOR HYDROCARBON PROCESSING | Jul 17, 24 | Jan 09, 25 | Enerflex US Holdings Inc. |
| 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 |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 29 Months (last 2 years Issuances)
- 29 Months (last 5 years Issuances)