ALEXANDRIA, Va., Sept. 24 -- United States Patent no. D1,149,216, issued on Sept. 22, was assigned to Hainan Fudian Advanced Materials Co. Ltd. (Haikou, China).
"Pet ball" was invented by Cheng Chen (Haikou, China).
The patent was filed on April 16, 2025, under Application No. D/999,109.
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