ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,785, issued on Nov. 11, was assigned to SHENZHEN RUIJIAN BIOTECHNOLOGY Co. LTD (Guangdong, China).

"Long-acting low-addiction HNK derivative and preparation method therefor" was invented by Shu Peng Li (Oakville, Canada) and Qiang Zhou (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to a compound having the effects of being an antidepressant, anesthetizing, alleviating pain, improving cognitive functions, protecting lungs, preventing or treating amyotrophic lateral sclerosis or preventing or treating complex regional pain syndrome. Compared with existing known HNK compounds, the compound provided in the ...