ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,460, issued on Nov. 11.
"Mouthpiece type removable orthodontic appliance" was invented by Han-Joon Kim (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Improvement is required in many aspects in order to enhance a treatment effect by reliably applying necessary orthodontic force for moving teeth. The present invention provides a mouthpiece type removable orthodontic appliance including a base portion (10), and a fitting portion (20) provided on the base portion. The base portion (10) is a thin plate formed of an inelastic material and extending along the shape of an occlusal surface of a dental arch of a jaw on which the orthodontic appl...