ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,633, issued on Aug. 19, was assigned to Alipay (Hangzhou) Information Technology Co. Ltd. (Hangzhou, China).

"Flow graph calculation and storage method and system" was invented by Kun Tang (Zhejiang, China) and Peng Yi (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present specification relates to the field of digital information, and in particular, to a flow graph calculation and storage method and system. A flow graph includes nodes and edges, and the method includes one or more rounds of processing respectively corresponding to one or more time periods. A round of processing includes: obtaining a graph data segment of a curre...