ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,768, issued on May 13, was assigned to ALIBABA GROUP HOLDING Ltd. (Grand Cayman, Cayman Islands).

"Method and apparatus for securing communications using multiple encryption keys" was invented by Kepeng Li (Hangzhou, China) and Kai Li (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a method and an apparatus for acquiring an electronic file. The method for acquiring an electronic file comprises: sending a first request message for acquiring an electronic file to a platform server, wherein the first request message carries a first identifier of an information providing server providing the electronic file; recei...