ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,431, issued on March 31, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).
"Portable power supply" was invented by Michael A. Barrowclift (East Troy, Wis.), Maria Krutikova (Wauwatosa, Wis.), Max Karbin (Milwaukee), James P. Elfering (Antioch, Ill.) and Swapnil Suresh Rathod (Milwaukee).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable power supply including a housing, at least one battery cell, a charger, and an attachment. The housing defines a cavity. The housing includes an upper portion, a lower portion, a plurality of air inlets defined in the lower portion, and a plurality of air outlets defined in the upper portion. T...