ALEXANDRIA, Va., April 7 -- United States Patent no. D1,121,786, issued on April 7, was assigned to NingBo XueHao Outdoor Products Co. Ltd. (Ningbo, China).
"Sewer pipe cover" was invented by Mingbo Yan (Ningbo, China).
The patent was filed on Oct. 17, 2025, under Application No. D/028,588.
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