ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,976, issued on Oct. 28, was assigned to NXP B.V. (Eindhoven, Netherlands).

"Method for protecting a machine learning model from being copied" was invented by Wilhelmus Petrus Adrianus Johannus Michiels (Reusel, Netherlands) and Jan Hoogerbrugge (Helmond, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided for protecting a machine learning (ML) model from being copied. An input sample is provided to the ML model for an inference operation. Features from an internal layer of the ML model relating to the sample are selected. Positive gradients of the features to output logits of the ML model are selected. A summation of a pr...