ALEXANDRIA, Va., July 9 -- United States Patent no. 12,356,514, issued on July 8.
"Electric blanket" was invented by Long Huang (Yongcheng, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric blanket is provided, which includes a PTC electric heating wire, a switch module, a control module, and a protection module. The switch module is connected to the PTC electric heating wire and correspondingly causes the PTC electric heating wire to be powered on or off when it is conducted on or off; the control module is used to control conduction or disconnection of the switch module and is configured to obtain voltage signal at two ends of the PTC electric heating wire through the switch module, convert ...