ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,459, issued on Nov. 18, was assigned to Ameresco Inc. (Framingham, Mass.).
"Gradient separator system and method" was invented by Nathan Hall (Cape Elizabeth, Maine), Mark Bruce (Gray, Maine) and Ben Russell (Portland, Maine).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to separation methods, apparatuses, and systems for obtaining a gas product from a gas mixture. A component of a gas mixture may be nonuniformly adsorbing on a quantity of adsorbent and a portion of the quantity of adsorbent isolated and exposed to a partial vacuum to obtain the gas product."
The patent was filed on Feb. 4, 2025, under Application No....