ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,541,615, issued on Feb. 3, was assigned to Alipay (Hangzhou) Information Technology Co. Ltd. (Hangzhou, China).

"Multi-party data query methods and apparatuses for data privacy protection" was invented by Wuqiong Pan (Hangzhou, China), Tao Wei (Hangzhou, China), Tingting Li (Hangzhou, China) and Tianyi Li (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this specification provide multi-party data query methods and apparatuses for data privacy protection. One implementation of the methods includes obtaining, from each of a plurality of data owners, attribute value ciphertexts of N target objects to form a ciphertext table, di...