ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,447, issued on April 7, was assigned to MAKEBLOCK Co. LTD. (Shenzhen, China).

"Fire extinguishing control method, fire extinguishing system, and fire extinguishing protection system" was invented by Binquan Wang (Shenzhen, China), Hexiang Gan (Shenzhen, China) and Shangzheng Xie (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fire extinguishing control method, a fire extinguishing system, and a storage medium are provided. The fire extinguishing protection system includes a fire extinguishing system and a device to be protected. The fire extinguishing system (3) is configured to extinguish a fire in the device to be protected (2). ...