 AnPac Bio-Medical Science Co., Ltd. AnPac Bio, the Company or we NASDAQ: ANPC, a biotechnology company with operations in China and the United States focused on early cancer screening and detection, announced today the allowance by the United States Patent and Trademark Office on March 5, 2020, of a US patent application claiming an integrated and decomposable micro apparatus that can be used for site-specific delivery of a drug, a medical kit, a micro disease detection system, or even an auto-navigation system for in vivo applications. 