QY

Qihuai Yao

Overall (2021): #297,255 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11111918 Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied Frank Yao 2021-09-07