ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,882, issued on Oct. 14, was assigned to Chunyan Zhong (Haikou, China), Hainan Guangyu Biotechnology Co. Ltd (Haikou, China) and Hainan Yeguo Foods Co. Ltd (Haikou, China).

"Bacterial cellulose-polyurethane composite material, preparation method therefor, and application thereof" was invented by Yuguang Zhong (Haikou, China) and Chunyan Zhong (Haikou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bacterial cellulose-polyurethane composite material, preparation method, and use are described. The preparation method comprises: performing organic solvent exchange on bacterial cellulose microfibers, and obtaining bacterial cellulose microfiber co...