UD

Umberto Ducati

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,358,899 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4460442 Hydrometallurgical method for recovering metal materials from spent lead-acid storage batteries — 1984-07-17
4420380 Method for extracting heavy metals from sulphurated mineral concentrates — 1983-12-13