ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,550, issued on March 4, was assigned to Locus Robotics Corp. (Wilmington, Mass.).

"Mobile robot having a removable wheel-drive assembly" was invented by Brad Edward Fiore (Vernon, Conn.), Colin Alexander Davis (New Orleans), John Stephen Lanier (New Orleans), Seth Edwards Allen (Newton, N.H.), Peter Sussman (Wilmington, Mass.) and John Hayes (Boston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mobile robot having a removable wheel-drive assembly, comprising a mobile base having a chassis and a first wheel well member with a flange. There is a removable wheel drive assembly with a mounting bracket. There is a motor drive unit disposed on the moun...