ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,854, issued on March 25, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Control system for controlling management of digital cards stored in decentralized content storage" was invented by Salil Das (Seattle), Peter Loren Engrav (Seattle), Cezar Augusto Alevatto Guimaraes Neto (Boca Raton, Fla.), Daniel Gabriel Zarzar (Kirkland, Wash.) and Forest Woodcroft Gouin (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metafolder system manages a graph that identifies activities that are performed with respect to digital cards and that identifies relationships among the digital cards. The digital cards from a plurality of diff...