US Patent Issued to United States of America as represented by the Administrator of NASA on Dec. 30 for "Systems and methods for oxygen concentration with electrochemical stacks in series gas flow" (Texas Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,541, issued on Dec. 30, was assigned to United States of America as represented by the Administrator of NASA (Washington).

"Systems and methods for oxygen concentration with electrochemical stacks in series gas flow" was invented by John C. Graf (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Concentration of oxygen gas with electrochemical stacks arranged in series gas flow. A system includes a plurality of electrochemical stacks for extracting oxygen from an input gas, wherein the plurality of electrochemical stacks outputs oxygen gas and oxygen-reduced gas. The system includes a heat exchanger in fluid communication with the plurality of ...