ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,031, issued on Aug. 19, was assigned to GUANGZHOU LIKEGAO IMPORT & EXPORT Co. LTD (Guangzhou, China).
"Pillow" was invented by Bizhong Wang (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pillow includes a pillow core main body. The pillow core main body includes a contact layer and a support layer. The contact layer and the support layer are stacked and connected. A hardness of the support layer is greater than a hardness of the contact layer. Through the above structure, when the pillow core main body is placed on a soft mattress, due to the high hardness of the support layer, the pillow core main body is provided with good supp...