ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,905, issued on July 14, was assigned to Jiangxi Normal University (Nanchang, China).

"Chitosan oligosaccharide sulfate and preparation method thereof" was invented by Qinghui You (Nanchang, China) and Manying Wang (Nanchang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure belongs to the field for preparation of chitosan oligosaccharide, and particularly relates to a chitosan oligosaccharide sulfate and a preparation method thereof. The method is as follows: adding an equal volume of 1.0%-2.0% by mass of potassium sulfate solution into 2.0%-4.0% by mass of chitosan oligosaccharide hydrochloride solution and evenly mixing t...