ALEXANDRIA, Va., Oct. 27 -- United States Patent no. D1,155,758, issued on Oct. 27, was assigned to DANFOSS A/S (Nordborg, Denmark).
"Proportional valve" was invented by Chengguo Gao (Shanghai), Xiaoyan Zhao (Shanghai), Wenyu Mao (Shanghai) and Yafei Wen (Shanghai).
The patent was filed on Oct. 5, 2022, under Application No. D/855,613.
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