ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,642, issued on May 26.
"Fermentation device" was invented by Junhui Li (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of fermentation apparatus, in particular a fermentation device, including an insulating jacket, a fermentation tank, a base, a top connector, a headstock, a bottom connector, and a return pipe. The insulating jacket is provided with an upper and a lower perforation respectively, the top connector projects to the outside of the insulating jacket via the upper perforation, and the bottom connector projects to the outside of the insulating jacket via the lower perforat...