ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,543,903, issued on Feb. 10, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Robot cleaner" was invented by Seungjin Lee (Seoul, South Korea) and Hwang Kim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a robot cleaner, more particularly, to a robot cleaner that may rotate auxiliary wheels to run over a tilted route or an obstacle, when cannot run over a tilted route or an obstacle because main wheels are not contacting with the floor."
The patent was filed on Oct. 2, 2019, under Application No. 17/762,415.
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