US Patent Issued to Shanghai Tauto Biotech on July 21 for "Method for separating and purifying tetrahydrocannabivarin by means of high-speed countercurrent chromatography" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,669, issued on July 21, was assigned to Shanghai Tauto Biotech Co. Ltd. (Shanghai).

"Method for separating and purifying tetrahydrocannabivarin by means of high-speed countercurrent chromatography" was invented by Qi Yu (Shanghai) and Li Deng (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for separating and purifying tetrahydrocannabivarin (THCV) by means of high-speed countercurrent chromatography, the method comprising: sufficiently shaking a solvent system, leaving same to stand, and separately collecting upper and lower phases; dissolving full-spectrum refined hemp oil in the upper phase, takin...