ALEXANDRIA, Va., Sept. 23 -- United States Patent no. D1,094,338, issued on Sept. 23, was assigned to Xi'an Fengyu Information Technology Co. Ltd. (Xi'an, China).
"Earphone" was invented by Fei Li (Xi'an, China), Mingxu Shao (Xi'an, China), Zhenwen Hu (Xi'an, China) and Qing Lv (Xi'an, China).
The patent was filed on Aug. 29, 2023, under Application No. D/901,167.
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