ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,571, issued on Dec. 2, was assigned to HD HYUNDAI INFRACORE Co. LTD. (Incheon, South Korea).

"System and method for status diagnosis of construction machinery" was invented by Keon Kim (Incheon, South Korea), Wonjong Lim (Incheon, South Korea), Doyoun Kim (Incheon, South Korea) and Daeho Kim (Incheon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a system for status diagnosis of construction machinery. The system for status diagnosis of the construction machinery to determine the abnormality of the construction machinery may include a sensor unit including at least one or more oil property sensors for detecting oil property ...