ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,815, issued on April 29, was assigned to UNILUMIN GROUP Co. LTD (Shenzhen, China).
"LED display screen lock" was invented by Yulong Xiao (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An LED display screen lock includes a handle, a lock seat and a lock core. The lock seat includes a base, a through hole and a pin slidably disposed on the base. The lock core is rotatably disposed on the handle and received in the through hole. A locking hole is formed on the lock core and the pin is inserted in the locking hole. An unlocking portion is disposed on a circumference of the handle. The unlocking portion is abutted against the pin, in orde...