ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,536, issued on Dec. 16, was assigned to Essential Extraction Corp. (Loveland, Colo.).
"Essential oil extractor" was invented by David Ross (Fort Collins, Colo.) and James Ramsey (Surprise, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the inventive technology may be described as a plant biomass extraction apparatus for production of liquid extract from plant biomass, using carbon dioxide, including one or more of: carbon dioxide chiller, extraction chamber, extract collection chamber, at least one valve, and fluid conveyance componentry, configured to define a closed loop for passive, pump-free extract production. Certain embod...