ALEXANDRIA, Va., May 26 -- United States Patent no. D1,128,209, issued on May 26, was assigned to Shenzhen TIZE Technology Co. ltd (Shenzhen, China).
"Ultrasonic dog trainer" was invented by Jian Wen (Shenzhen, China) and Shiwang Xian (Shenzhen, China).
The patent was filed on May 28, 2025, under Application No. D/005,634.
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