YY

Yuanming Yi

📍 Qingshanqiao, CN: #23 of 61 inventorsTop 40%
Overall (All Time): #2,209,715 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6339936 Phase-changeable and non-heat refrigeration process and apparatus thereof — 2002-01-22
6223558 Method of refrigeration purification and power generation of industrial waste gas and the apparatus therefor — 2001-05-01