ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,921, issued on March 24, was assigned to LEGO A/S (Billund, Denmark).

"Rechargeable interactive toy" was invented by Thomas Alan Donaldson (Billund, Denmark), Mark Ross Champkins (Billund, Denmark), Radost Radoslavova Kerefeyna (Billund, Denmark), Rasmus Bissenbakker Kaersgaard (Billund, Denmark), Yufan Wei Wang (Billund, Denmark), Arun Venkatasubramanian (Tanjong Rhu, Singapore), Simon Mark Jordan (Upper Cambourne, Great Britain), Andrew James Knights (Huntington, Great Britain), Isobel Jane Ashbey (Cambridge, Great Britain), Martin Edward Brock (Cambridge, Great Britain), Rosanna Elizabeth Parrish (Cambridge, Great Britain), Silviu Toma (Cambridge, Great Britain), Robert George...