ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,413, issued on Sept. 1, was assigned to CONAIR LLC (Stamford, Conn.).

"Hair straightening appliance with adjustable heat plate" was invented by Chan Ngan Chi (Ma On Shan, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hair straightening appliance with an adjustable heat plate includes a first handle and a second handle that are configured for relative movement between an open position for receiving hair therebetween and an approximated position for clamping hair. The first handle and the second handle are each configured to impart a straightening effect on hair when clamped. At least one of the first heating plate and the second heating ...