ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,222, issued on Aug. 11, was assigned to Shenzhen Sulang Technology Co. Ltd (Shenzhen City, China).
"Electric steam cleaner" was invented by WenMing Li (Shenzhen City, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric cleaner includes a steam delivery system, a cleaning head and a drive assembly. The steam delivery system directs high-temperature steam to the cleaning head, so as to form a high-temperature steam environment. The drive assembly electrically drives the cleaning head to move within the high-temperature steam environment."
The patent was filed on Dec. 18, 2025, under Application No. 19/425,913.
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