ALEXANDRIA, Va., March 5 -- United States Patent no. 12,242,634, issued on March 4.

"Highly flexible, scalable multi blockchain, hierarchical data sharing and data storing system and method thereof" was invented by Jiang Xiao (Wuhan, China), Jian Chang (Wuhan, China), Junpei Ni (Wuhan, China), Xiaohai Dai (Wuhan, China), Shijie Zhang (Wuhan, China) and Hai Jin (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a highly flexible, scalable multi-blockchain, hierarchical data-sharing and data-storing system, at least comprising a third-party blockchain system, a data-sharing blockchain system, and an application-layer client, wherein the data-sharing blockchain system ...