ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,718, issued on Oct. 7, was assigned to SMYLIO INC. (Fremont, Calif.).
"Stress relaxation resistant orthodontic appliances" was invented by Loc Phan (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Orthodontic appliances formed from a material that includes an interpenetrating polymer network or semi-interpenetrating polymer network material to prevent or reduce stress relaxation of the material during use by a patient. Methods for forming orthodontic appliances from a material that includes from an interpenetrating polymer network or semi-interpenetrating polymer network material to prevent or reduce stress relaxation of the materi...