US Patent No: 8,029,599 - Analytics, PDF, Full Text and PAIR Access

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Separating gas using immobilized buffers

ALSO PUBLISHED AS: 20110209610

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Abstract

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
PALO ALTO RESEARCH CENTER INCORPORATEDPALO ALTO, CA1024

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Littau, Karl A Palo Alto, CA 80 726
Torres, Francisco E San Jose, CA 76 743

Cited Art Landscape

Patent Info (Count) # Cites Year
 
PALO ALTO RESEARCH CENTER INCORPORATED (7)
2009/0159,456 Separating Gas Using Ion Exchange 6 2007
7,938,891 Using ionic liquids 2 2008
2009/0233,155 USING IONIC LIQUIDS 6 2008
7,938,892 Producing articles that include ionic liquids 2 2008
2009/0301,297 Producing Articles That Include Ionic Liquids 6 2008
7,938,890 Separating gas using immobilized buffers 4 2008
2010/0005,959 Separating Gas Using Immobilized Buffers 6 2008
 
AKZO AMERICA INC., A CORP. OF DE (1)
4,250,000 Electrochemical process for metal alkoxides 10 1979
 
AT&T IPM CORP. (1)
5,472,585 Regeneration of spent electroless copper plating solution 15 1994
 
B.P.T. BIO PURE TECHNOLOGY LTD. (1)
5,597,863 Immobilized buffered gels and membranes of hydroxy groups containing polymers 7 1995
 
BASF AKTIENGESELLSCHAFT (1)
5,258,106 Electrolysis of alkali metal sulfates 7 1991
 
BIO-RAD LABORATORIES, INC. (1)
5,773,645 Two-dimensional electrophoresis device 29 1997
 
DORNIER GMBH (1)
5,876,486 Method and apparatus for removing carbon dioxide 35 1996
 
ELTRON RESEARCH, INC. (1)
6,793,711 Mixed conducting membrane for carbon dioxide separation and partial oxidation reactions 17 2000
 
EVONIK DEGUSSA GMBH (1)
2006/0100,323 Polymer compositions containing polymers and ionic liquids 28 2003
 
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1)
6,673,737 Ionic liquid compositions 7 2001
 
ITW-ATECO GMBH (1)
5,497,863 Rotary damper 20 1994
 
JOHNSON MATTHEY PUBLIC LIMITED COMPANY (1)
6,969,693 Immobilised ionic liquids 13 2002
 
MOTOROLA MOBILITY LLC (1)
6,908,500 System and method for controlling gas transport in a fuel cell 5 2002
 
PHYSICAL SCIENCES, INC. (1)
5,133,842 Electrochemical cell having electrode comprising gold containing electrocatalyst 34 1991
 
SCHLUMBERGER TECHNOLOGY CORPORATION (1)
2008/0115,667 Conductive membrane for carbon dioxide separation 7 2007
 
SHELL OIL COMPANY (1)
2005/0154,247 Process for the separation of olefins and paraffins 12 2004
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,358,556 Membranes having selective permeability 13 1993
 
UNIVERSITY OF NOTRE DAME DU LAC (1)
6,579,343 Purification of gas with liquid ionic compounds 77 2002
 
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (1)
7,763,097 Devices, systems and methods for reducing the concentration of a chemical entity in fluids 8 2007
 
UNIVERSITY OF WYOMING (1)
2007/0119,302 Polymers containing ionic groups for gas separation and storage 7 2006

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Maintenance Fees

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3.5 Year Payment $1600.00 $800.00 $400.00 Apr 4, 2015
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