ALEXANDRIA, Va., April 2 -- United States Patent no. D1,068,739, issued on April 1, was assigned to Ningbo Sogen Electronics Technology Co. Ltd. (Yuyao, China).
"Earphone" was invented by Hao Zhang (Yuyao, China), Ronghua Zhu (Yuyao, China), Wei Zhao (Yuyao, China), Diqiu Chen (Yuyao, China), Shundong Pan (Yuyao, China), Yuqing Lei (Yuyao, China) and Tianshuo Zhang (Yuyao, China).
The patent was filed on Nov. 30, 2023, under Application No. D/918,934.
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