ALEXANDRIA, Va., April 2 -- United States Patent no. D1,069,079, issued on April 1, was assigned to Guangdong 3004 Technology Co. Ltd. (Guangzhou, China).
"Column diffuser" was invented by Xingang Qu (Guangzhou, China), Jiabiao Xie (Guangzhou, China) and Kunxi Xie (Guangzhou, China).
The patent was filed on Sept. 21, 2023, under Application No. D/912,649.
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