ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,139, issued on June 17, was assigned to TAS PROJECT Co. LTD (Fukuoka, Japan).

"Method for extracting low-molecular-weight substance existing in biological sample" was invented by Yoshiyuki Koga (Fukuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for extracting a low-molecular-weight substance existing in a biological sample, including: 1) an adsorption step of adsorbing the substance on porous carbon by mixing the biological sample with the porous carbon having mesopores of 3.5 nm to 150 nm and micropores of a larger size as a hierarchical structure, and recovering the porous carbon from the obtained mixture, or by bringing the b...