QZ

Qichang Zheng

📍 Shaoyang City, CN: #4 of 12 inventorsTop 35%
Overall (2022): #295,875 of 548,613Top 55%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11493051 Noise reduction method of a ventilator Zhe Liu, Lei Zhou, Jinping Su 2022-11-08