ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,020, issued on June 10, was assigned to ENTRANTECH INC. (Gilroy, Calif.).

"System for swappable battery module charging and discharging" was invented by Kong-Chen Chen (Gilroy, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy storage system comprises a set of swappable battery modules positioned in battery slots with a battery module being controlled by a control switch. The control switches are linkable to form a charging control chain and/or a discharging control chain respectively to control sequential charging/discharging, parallel charging/discharging, and segmented charging/discharging among the set of battery modules in the ene...