ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,370, issued on Nov. 4, was assigned to Jingzhuo Wang (Mianyang, China).
"Moisture-proof structure" was invented by Jingzhuo Wang (Mianyang, China) and Haoping Chen (Mianyang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A moisture-proof structure comprises a first fire brick layer, a second fire brick layer, a third fire brick layer, a fourth fire brick layer, a fifth fire brick layer and a floor/ceramic tile layer arranged from bottom to top. The five fire brick layers are all laid by using stretcher bond, the fourth fire brick layer is laid by using a means of header bond, upper and lower layers of the first fire brick layer, the second fir...