US Patent No: 8,029,599
Number of patents in Portfolio can not be more than 2000
Separating gas using immobilized buffers
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Oct 4, 2011
Issued date -
May 10, 2011
filing date -
13/104,556
serial no -
In Force
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Abstract
A layered structure can be formed having immobilized or segregated pH buffering groups that can be used to separate carbon dioxide or other gases. The pH buffering groups can be immobilized within a matrix, confined within a gel, or segregated by a semi-permeable membrane. The pH buffering groups can be configured to increase the efficiency of the system by maintaining a desirable pH profile within the cell and to permit the flow of the carbon-containing ions within the system while controlling diffusion of protons and/or hydroxyl ions.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 2009/0159,456 Separating Gas Using Ion Exchange | 4 | 2007 | |
| 7,938,891 Using ionic liquids | 2 | 2008 | |
| 2009/0233,155 USING IONIC LIQUIDS | 4 | 2008 | |
| 7,938,892 Producing articles that include ionic liquids | 2 | 2008 | |
| 2009/0301,297 Producing Articles That Include Ionic Liquids | 1 | 2008 | |
| 7,938,890 Separating gas using immobilized buffers | 3 | 2008 | |
| 2010/0005,959 Separating Gas Using Immobilized Buffers | 4 | 2008 | |
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| 5,472,585 Regeneration of spent electroless copper plating solution | 15 | 1994 | |
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| 6,793,711 Mixed conducting membrane for carbon dioxide separation and partial oxidation reactions | 17 | 2000 | |
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| 6,908,500 System and method for controlling gas transport in a fuel cell | 5 | 2002 | |
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| 5,133,842 Electrochemical cell having electrode comprising gold containing electrocatalyst | 27 | 1991 | |
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| 2005/0154,247 Process for the separation of olefins and paraffins | 10 | 2004 | |
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| 5,358,556 Membranes having selective permeability | 13 | 1993 | |
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| 6,579,343 Purification of gas with liquid ionic compounds | 54 | 2002 | |
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| 7,763,097 Devices, systems and methods for reducing the concentration of a chemical entity in fluids | 6 | 2007 | |
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| 2007/0119,302 Polymers containing ionic groups for gas separation and storage | 7 | 2006 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
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| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Apr 4, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 4, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 4, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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