ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,511,363, issued on Dec. 30, was assigned to COLOP DIGITAL GMBH (Wels, Austria).
"Method and token for document authentication" was invented by Alex Breton (Nyland, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and token (3) for corroborating a document (25) includes having a registered token (3) with a token identity. The token (3) is able to print visual markings. A document identifier is obtained (18) based on at least the token identity and a timestamp. The document identifier is encoded (19) into a visual marking (24), and the visual marking (24) is applied to the document (25). A copy of the document (25) is obtained (27) with or w...