ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,218,447, issued on Feb. 4, was assigned to AMULET HOTKEY LTD (Devon, Great Britain).

"Data processor cartridge" was invented by Sean Andrew Copeland (Toronto) and Mark Lawrence Stevens (Newton Abbot, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A data processor cartridge comprising a housing to accommodate two data processor assemblies, and further comprising: a first connector (2A) to receive a first data processor assembly (10); and a second connector (2B) to receive a second data processor assembly (11); and wherein the second connector (2B) is arranged to receive the second data processor in an inverted orientation as compared to the ...