ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,059, issued on May 19, was assigned to Southco Manufacturing and Technology (Shanghai) Co. Ltd. (Shanghai).
"Locking device and locking system" was invented by Chungsik Yoon (Gyeonggi-Do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a locking device comprising: a housing; a plunger inserted into the housing, movable and rotatable to transit between a locking position and an unlocking position, wherein when the plunger is in the unlocking position, the plunger is in a first rotating position and a first axial position, when the plunger is in the locking position, the plunger is in a second rotational pos...