ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,573, issued on June 10.

"Double-layer structured cushioning corner protector" was invented by Limin Yuan (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A double-layer structured cushioning corner protector, comprises a corner protector body, the corner protector body has a double-layer wall structure, a cavity is arranged between the double-layer walls. Furthermore, to increase strength, concave platforms or holes can be set up on inner and outer walls to provide support and reinforcement between them, using environmentally friendly flame-retardant and tough materials to manufacture the protective corner body with a double-wall cush...