Class F25J : LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
Subclass 3/04: Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream (F25J 3/08 takes precedence) for air
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11976880 | Method and installation for low temperature separation of air | Aug 20, 19 | May 07, 24 | Linde GMBH |
| 11959701 | Air separation unit and method for production of high purity nitrogen product using a distillation column system with an intermediate pressure kettle column | Jul 28, 22 | Apr 16, 24 | Praxair Technology, Inc. |
| 11958022 | Controlled hydrolysis of hazardous silicon polymer residue | Oct 07, 20 | Apr 16, 24 | Mitsubishi Polycrystalline Silicon America Corporation (MIPSA); HIGH-PURITY SILICON CORPORATION; |
| 11946693 | System for controlling an argon flow rate at the outlet of a distillation column | May 22, 19 | Apr 02, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11946694 | Stabilizer reboiler salt fouling online cleaning | Aug 09, 21 | Apr 02, 24 | Saudi Arabian Oil Company |
| 11933538 | System and method for recovery of nitrogen, argon, and oxygen in moderate pressure cryogenic air separation unit | Apr 14, 21 | Mar 19, 24 | Praxair Technology, Inc. |
| 11933540 | Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler | Apr 13, 23 | Mar 19, 24 | Praxair Technology, Inc. |
| 11933539 | Cryogenic air separation unit with argon condenser vapor recycle | Aug 11, 21 | Mar 19, 24 | Praxair Technology, Inc. |
| 11933541 | Cryogenic air separation unit with argon condenser vapor recycle | Aug 11, 21 | Mar 19, 24 | Praxair Technology, Inc. |
| 11913719 | Liquefaction apparatus | Jan 22, 21 | Feb 27, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11913720 | Product gas supply quantity adjustment device and air separation apparatus comprising same | Mar 22, 21 | Feb 27, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11852408 | Method and apparatus for separating air by cryogenic distillation | May 05, 21 | Dec 26, 23 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11846468 | Method and unit for low-temperature air separation | Oct 22, 19 | Dec 19, 23 | Linde GMBH |
| 11828532 | Method and apparatus for transfer of liquid | Dec 31, 20 | Nov 28, 23 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11746013 | Apparatus and method for separating liquid oxygen from liquified air | Jun 27, 17 | Sep 05, 23 | Texas Tech University System |
| 11740015 | Air separation unit by cryogenic distillation | Jan 26, 18 | Aug 29, 23 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11713921 | System and method for the production of argon in an air separation plant facility or enclave having multiple cryogenic air separation units | Aug 17, 20 | Aug 01, 23 | Praxair Technology Inc. |
| 11709018 | Single packaged air separation apparatus with reverse main heat exchanger | Dec 25, 17 | Jul 25, 23 | L'Air Liquide Societe Anonyme Pour L'Etude Et L'Expoitation Des Procedes Georges Claude |
| 11698225 | Modelling of a distillation column with operating state changes | Oct 17, 18 | Jul 11, 23 | Linde Aktiengesellschaft |
| 11692508 | Dual stirling cycle liquid air battery | Aug 03, 21 | Jul 04, 23 | The Government of the United States of America, as represented by the Secretary of the Navy |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0133,624 | METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION | Feb 14, 22 | Apr 25, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0125,550 | Process and Apparatus for Improved Recovery of Argon | Oct 18, 22 | Apr 18, 24 | Air Products and Chemicals, Inc. |
| 2024/0068,743 | INTEGRATED SYSTEM FOR ACCUMULATING POWER OR FOR GENERATING ELECTRIC POWER AND NATURAL GAS | Dec 22, 21 | Feb 29, 24 | Not available |
| 2024/0068,746 | METHOD FOR RESTARTING AN AIR SEPARATION UNIT | Dec 16, 21 | Feb 29, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0060,717 | SYSTEM FOR STORING AND PRODUCING ENERGY TO STABILIZE THE POWER NETWORK | Dec 27, 21 | Feb 22, 24 | Not available |
| 2024/0053,097 | AIR SEPARATION UNIT AND AIR SEPARATION METHOD | Aug 09, 23 | Feb 15, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0053,098 | AIR SEPARATION UNIT | Aug 10, 23 | Feb 15, 24 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude |
| 2024/0044,578 | METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION | Dec 15, 21 | Feb 08, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0035,740 | AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN | Jul 28, 22 | Feb 01, 24 | Not available |
| 2024/0035,741 | AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN | Jul 28, 22 | Feb 01, 24 | Not available |
| 2024/0035,743 | PROCESS AND APPARATUS FOR RECOVERY OF AT LEAST NITROGEN AND ARGON | Aug 01, 22 | Feb 01, 24 | Air Products and Chemicals, Inc. |
| 2024/0035,744 | AIR SEPARATION UNIT AND METHOD FOR PRODUCTION OF NITROGEN AND ARGON USING A DISTILLATION COLUMN SYSTEM WITH AN INTERMEDIATE PRESSURE KETTLE COLUMN | Jul 28, 22 | Feb 01, 24 | Not available |
| 2024/0035,745 | SYSTEM AND METHOD FOR CRYOGENIC AIR SEPARATION USING FOUR DISTILLATION COLUMNS INCLUDING AN INTERMEDIATE PRESSURE COLUMN | Jul 28, 22 | Feb 01, 24 | Not available |
| 2024/0035,746 | ENCLOSURE FOR A COLUMN FOR LOW-TEMPERATURE DISTILLATION | Jul 28, 23 | Feb 01, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0026,228 | PROCESS FOR REGENERATING CATALYST FROM A FLUIDIZED CATALYTIC PROCESS AT HIGH PRESSURE | May 08, 23 | Jan 25, 24 | Not available |
| 2024/0019,205 | FACILITY FOR PRODUCING GASEOUS METHANE BY PURIFYING BIOGAS FROM LANDFILL, COMBINING MEMBRANES AND CRYOGENIC DISTILLATION FOR LANDFILL BIOGAS UPGRADING | Nov 11, 21 | Jan 18, 24 | Not available |
| 2024/0019,207 | SYSTEM AND METHOD FOR GAS LIQUEFICATION | Jun 14, 23 | Jan 18, 24 | Not available |
| 2024/0011,706 | METHOD FOR REGULATING A DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION | Jul 05, 23 | Jan 11, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0011,704 | DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION | Dec 02, 21 | Jan 11, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2024/0011,705 | GAS SEPARATION METHOD USING DEEP COOLING PROCESS | Jul 06, 23 | Jan 11, 24 | Not available |
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