ALEXANDRIA, Va., July 3 -- United States Patent no. D1,081,767, issued on July 1, was assigned to TILTA INC. (Burbank, Calif.).
"Focus gear ring" was invented by Shengzhao Liu (Shenzhen, China), Wenping Zeng (Shenzhen, China) and Kefeng Zhou (Shenzhen, China).
The patent was filed on Jan. 2, 2024, under Application No. D/923,831.
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