ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,400,071, issued on Aug. 26, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Comment adding method, electronic device, and related apparatus" was invented by Dong Xiao (Wuhan, China) and Zexi Chen (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example comment adding methods and communication terminals are disclosed. One example comment adding method includes displaying, by an electronic device, in a first region, first content at a content layer. The electronic device receives a first operation of a finger and a second operation of a stylus within a first preset duration range. The electronic device loads a comment layer on...