ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,047, issued on Nov. 18, was assigned to WUXI EA BIOTECHNOLOGY Ltd. (Jiangsu, China).
"Shell-shaped dental appliance capable of preventing dental caries and method of fabricating the same" was invented by Lei Huang (Shanghai) and Shida Lv (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shell-shaped dental appliance includes: a body which is an integral shell and forms a cavity for receiving teeth; and an anti-caries film which has a certain thickness, and is formed on at least a partial area of an inner surface of the body, and is able to react with saliva to release fluoride ions."
The patent was filed on March 12, 2021, under Applicatio...