LH

Leif E. I. Hummelstedt

OO Outokumpu Oyj: 2 patents #79 of 428Top 20%
📍 Turku, FI: #281 of 846 inventorsTop 35%
Overall (All Time): #2,309,709 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5118478 Extractrion process for removing and recovering metals from aqueous solutions Bror Nyman 1992-06-02
4818503 Extraction process for removing and recovering metals from aqueous solutions Bror Nyman 1989-04-04