ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,566, issued on Sept. 15, was assigned to Institute of Applied Ecology, Chinese Academy of Sciences (Shenyang, China).

"Field in-place film-covering fermentation device" was invented by Jian Ma (Shenyang, China), Xin Chen (Shenyang, China), Caiyan Lu (Shenyang, China) and Guangyu Chi (Shenyang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A field in-place film-covering fermentation device is provided. The device includes a support structure, a covering film, and a ventilation structure. The support structure is connected to the covering film through cross-connecting rings on the covering film to form a columnar pile structure. The covering f...