ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,913, issued on May 20, was assigned to SICPA HOLDING SA (Prilly, Switzerland).
"Certified text document" was invented by Eric Decoux (Vevey, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention protects a content of a digital or physical document against forgery. It allows automatic detection of any modification in an arrangement of graphical symbols (e.g. a text) provided on a support (e.g. printed or displayed) with respect to an original arrangement by providing on the support reproducible verifiable data including a verification barcode, while eliminating redundancy between data inside the barcode and the graphical symbols, a...