QM

Qunyi Ma

CA Carrier: 2 patents #900 of 2,507Top 40%
Overall (All Time): #1,771,832 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12123430 Inlet guide vane mechanism for centrifugal compressor, centrifugal compressor and refrigeration system Lei Yu, Fujin Feng, Huiliang Zhang, Vishnu M. Sishtla 2024-10-22
12044259 Piping assembly and refrigeration system Lei Yu, Fujin Feng, Yuchang Shao, Xu Jiang 2024-07-23