US Patent 7582223 Refrigerant composition for refrigeration systems

Patent 7582223 was granted and assigned to Indian Institute Of Technology, Madras on September, 2009 by the United States Patent and Trademark Office.

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Current Assignee

Indian Institute Of Technology, Madras

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75822230

Date of Patent

September 1, 2009

Patent Application Number

118511000

Date Filed

September 6, 2007

Patent Primary Examiner

‌

John R. Hardee

Patent abstract

The present invention relates to a method of refrigeration using refrigerant composition for multistage refrigeration systems, such as a pre-cooled mixed refrigeration system with one or more phase separators. The refrigerant composition can include nitrogen; methane; ethane, ethylene, or combinations thereof; propane, n-butane, iso-butane, or combinations thereof; and neon, helium, or combinations thereof.

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