ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,156, issued on Oct. 20, was assigned to SICPA HOLDING SA (Prilly, Switzerland).
"Method and device for authenticating a visual item" was invented by Cheng Chen (Sion, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of optical detection of the authenticity or non-authenticity of visual items Particularly, the invention relates to the technical field of respectively encryption methods and authentication methods of a digital representation of a visual item using respectively an encryption device and an authentication device."
The patent was filed on Dec. 16, 2022, under Application No. 18...