ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,247, issued on April 7, was assigned to Planet (Anhui) Pharmaceutical Co. Ltd. (Chuzhou, China).
"Edged cataplasm and manufacturing process" was invented by Xiaoshen Zhou (Chuzhou, China), Yunqiang Ying (Chuzhou, China) and Yuan Zhu (Chuzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An edged cataplasm and a manufacturing process are disclosed. The edged cataplasm includes a support layer; a drug layer, which adheres to the bottom of the support layer; a cross-type release film, which adheres to the bottom of the drug layer. The cross-type release film includes a first-release film piece and a second-release film piece, and the adjacent e...