ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,572, issued on April 7, was assigned to SHENZHEN MLOONG DIGITAL Co. LTD. (Shenzhen, China).
"Layer-structured, open-design keyboard" was invented by Mengyao Yu (Shenzhen, China) and Zhichao Wang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A layer-structured, open-design keyboard includes a main body and a tray attached to the main body from below. The main body has key mechanisms and keycaps mounted on tops of the key mechanisms. The main body includes an upper-layer plate, a middle-layer plate, a circuit board, and a lower-layer plate arranged from a top to a bottom of the main body successively in a spaced manner, so as to defi...