ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,322, issued on July 21, was assigned to Lemon Inc. (Grand Cayman, Cayman Islands).

"Method and apparatus for protecting data, and device and medium" was invented by Jiankai Sun (Los Angeles), Xin Yang (Los Angeles), Yuanshun Yao (Los Angeles), Junyuan Xie (Beijing) and Chong Wang (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for protecting data, and a device and a medium are provided. The method comprises acquiring, by a first device, a feature representation generated by a second device on the basis of sample data and according to a second model, wherein the first device has label information for the sample data...