US Patent Issued to Wacom on Sept. 30 for "Secure signing method, device and system" (German, British Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,430,390, issued on Sept. 30, was assigned to Wacom Co. Ltd. (Saitama, Japan).

"Secure signing method, device and system" was invented by Joss Daniel Giffard-Burley (Frome, Great Britain), Avinav Khanal (Duesseldorf, Germany) and Novi Rahman (Duesseldorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A record including an original document and a modification to the original document is created. Metadata associated with the modification to the original document is generated. The modification in stored in a data store. Creation and registration of a decentralized identifier (DID) document for the modification is requested based on the generated m...