ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,657, issued on March 17, was assigned to DREAME TECHNOLOGY (SHANGHAI) Co. LTD. (Shanghai).

"Electric hair dryer shell assembly with convenient installation features and electric hair dryer" was invented by Wenming Nie (Shanghai) and Peng Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A push button assembly, applied to a hair dryer which having a handle with an adjustment switch inside, includes: a push button arranged on an outside of the handle, the push button having a first snap structure extending into an inside of the handle; and a sliding member arranged inside the handle and having a second snap structure, the sliding member b...