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US Patent 7294172 Helium recovery

Patent 7294172 was granted and assigned to Praxair on November, 2007 by the United States Patent and Trademark Office.

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Patent abstract

A gas recovery system comprising a source of gas having a preselected concentration of a desired component (9), at least one application (1) that adds impurities to said gas, and at least one an adsorption system (6) that purifies said gas to produce a purified gas for re-use in application (1), wherein said at least one adsorption system includes at least one adsorbent bed (A) having at least three layers of adsorbents. A recovery process is also disclosed.

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Patent Citations Received
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US Patent 11656211 Systems and methods for identifying gas migration using helium
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=0729417200
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US Patent 07294172 Helium recovery US Patent 7294172 Helium recovery

Infobox
Patent Number
0729417200
Patent Number
729417200
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"Entity importer update"
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edited on 29 Mar, 2023
Infobox
Is a
Patent
Patent
0
Current Assignee
Praxair
Praxair
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
072941720
Date of Patent
November 13, 2007
0
Patent Application Number
104849020
Date Filed
July 31, 2002
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=072941720
Patent Primary Examiner
‌
Frank M Lawrence, Jr.
0
Edits on 23 Sep, 2022
"Entity importer update"
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Golden AI
edited on 23 Sep, 2022
Infobox
Is a
Patent
Patent
0
Current Assignee
Praxair
Praxair
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
072941720
Date of Patent
November 13, 2007
0
Patent Application Number
104849020
Date Filed
July 31, 2002
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=072941720
Patent Primary Examiner
‌
Frank M Lawrence, Jr.
0
Edits on 17 Jun, 2022
"Entity importer update"
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Golden AI
edited on 17 Jun, 2022
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Infobox
Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07294172
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 US Patent 07294172 Helium recovery

Infobox
Is a
Patent
Patent
Current assignee
Praxair
Praxair
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07294172
Date of patent
November 13, 2007
Patent application number
10484902
Date Filed
July 31, 2002
Patent primary examiner
‌
Frank M Lawrence, Jr.

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