Class F25J : LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
Subclass 3/08: Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification Separating gaseous impurities from gases or gaseous mixtures (cold traps B01D 8/00)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12209803 | Pretreatment of natural gas prior to liquefaction | Aug 01, 22 | Jan 28, 25 | Lummus Technology Inc. |
| 12196486 | Air separation apparatus, adsorber, and method | Jul 21, 21 | Jan 14, 25 | Air Products and Chemicals, Inc. |
| 12187611 | Process and apparatus for the separation of a mixture of hydrogen and carbon monoxide at low temperature | May 04, 22 | Jan 07, 25 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 12151208 | Stable isotope concentration method | Mar 08, 21 | Nov 26, 24 | Taiyo Nippon Sanso Corporation |
| 12140374 | Method for producing high purity hydrogen | Feb 08, 22 | Nov 12, 24 | Air Products and Chemicals Inc. |
| 12061046 | purification and supply system | Oct 11, 19 | Aug 13, 24 | Messer Industries USA, Inc. |
| 12050055 | Lean gas LNG heavies removal process using NGL | Oct 01, 20 | Jul 30, 24 | ConocoPhillips Company |
| 12030000 | Vessel and method for solid-liquid separation | Dec 22, 17 | Jul 09, 24 | Sustainable Energy Solutions, LLC |
| 11988445 | Preparing hydrocarbon streams for storage | Feb 18, 21 | May 21, 24 | GE Oil & Gas, Inc. |
| 11959702 | Air separation device | Mar 04, 21 | Apr 16, 24 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11794127 | Methods and systems for separating compounds | Mar 30, 20 | Oct 24, 23 | Sustainable Energy Solutions, Inc |
| 11674749 | LNG production with nitrogen removal | Mar 13, 20 | Jun 13, 23 | Air Products and Chemicals, Inc. |
| 11668524 | Methods for removal of moisture from LNG refrigerant | Jan 06, 20 | Jun 06, 23 | ExxonMobil Upstream Research Company |
| 11624556 | purification and supply system | Oct 11, 19 | Apr 11, 23 | Messer Industries USA, Inc. |
| 11585599 | Cryogenic purification device and method and machine comprising a purification device | Jun 18, 18 | Feb 21, 23 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11473838 | -recovery apparatus and method of use | Dec 18, 15 | Oct 18, 22 | Baker Hughes Holdings LLC |
| 11402155 | Pretreatment of natural gas prior to liquefaction | Sep 06, 16 | Aug 02, 22 | Lummus Technology Inc. |
| 11397049 | High pressure recovery of carbon dioxide from a fermentation process | Dec 22, 17 | Jul 26, 22 | UNION ENGINEERING A/S |
| 11353262 | Nitrogen production method and nitrogen production apparatus | Mar 20, 19 | Jun 07, 22 | L'Air Liquide - Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 11287183 | Method and plant for the purification of carbon dioxide using liquid carbon dioxide | Apr 25, 17 | Mar 29, 22 | UNION ENGINEEERING A/S |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0369,293 | APPARATUS AND PROCESS FOR OXYGEN RECOVERY | May 01, 23 | Nov 07, 24 | Air Products and Chemicals, Inc. |
| 2024/0337,441 | LEAN GAS LNG HEAVIES REMOVAL PROCESS USING NGL | Jun 17, 24 | Oct 10, 24 | Not available |
| 2024/0261,731 | METHOD AND APPARATUS FOR SEPARATION OF HELIUM-3 FROM HELIUM-4 BY MEANS OF A CRYOGENIC PROCESS | Jun 08, 22 | Aug 08, 24 | Not available |
| 2024/0263,873 | Device and method for recovering carbon dioxide and nitrogen from flue gas | Feb 01, 24 | Aug 08, 24 | HANGZHOU OXYGEN PLANT GROUP CO., LTD. |
| 2024/0210,106 | METHOD AND APPARATUS FOR SEPARATING A FLOW RICH IN CARBON DIOXIDE BY DISTILLATION TO PRODUCE LIQUID CARBON DIOXIDE | Mar 10, 22 | Jun 27, 24 | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 2023/0213,276 | DEVICES, SYSTEMS, FACILITIES AND PROCESSES FOR CO2 CAPTURE/SEQUESTRATION AND CONVENTIONAL HYDROGEN GENERATION FROM BLAST FURNACE FACILITIES | Nov 23, 22 | Jul 06, 23 | Not available |
| 2021/0310,733 | METHOD FOR RECYCLING ARGON | Jun 14, 19 | Oct 07, 21 | MESSER GROUP GMBH |
| 2020/0355,430 | Impurity Control For A High Pressure CO2 Purification And Supply System | Oct 11, 19 | Nov 12, 20 | Messer Industries USA, Inc. |
| 2020/0255,752 | PROCESS AND SYSTEM FOR CRACKING A HYDROCARBON FEED | Aug 10, 18 | Aug 13, 20 | Not available |
| 2019/0264,979 | SPLIT FLOW INTEGRATED LNG PRODUCTION (SFI-LNG) | Feb 28, 19 | Aug 29, 19 | Not available |
| 2019/0128,604 | Recuperative Heat Exchange for Desiccation of Cold Fluids | Oct 27, 17 | May 02, 19 | Not available |
| 2018/0340,731 | Method for Recycling Streams in a Separations Process | May 23, 17 | Nov 29, 18 | Not available |
| 2018/0335,255 | DEVICE AND METHOD FOR PURIFYING A GAS MIXTURE | May 16, 18 | Nov 22, 18 | L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude |
| 2018/0328,661 | Method for Removing Foulants from a Heat Exchanger through Coolant Flow Control | May 11, 17 | Nov 15, 18 | Not available |
| 2018/0328,660 | METHODS FOR REMOVING IMPURITIES FROM PROCESS GAS STREAMS | May 10, 17 | Nov 15, 18 | Not available |
| 2018/0320,963 | Process for Gas/Vapor Separation by Cryogenic Froth Flotation | May 04, 17 | Nov 08, 18 | Not available |
| 2018/0320,964 | Method for Separating Gases and Vapors in a Cascading Coolant Horizontal Spray Tower | May 05, 17 | Nov 08, 18 | Not available |
| 2018/0306,500 | Method for Preventing Fouling of Cryogenic Injection Systems | Apr 21, 17 | Oct 25, 18 | Not available |
| 2018/0306,499 | Methods for Gas-Vapor Separation using a Three-Phased Scouring Heat Exchanger | Apr 21, 17 | Oct 25, 18 | Not available |
| 2018/0283,782 | Continuous Solid Filtration for Solid-Liquid Separations | Apr 04, 17 | Oct 04, 18 | Not available |
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