DM

Dirk Guustaaf Mantel

IN Ipcor Nv: 1 patents #2 of 14Top 15%
Overall (All Time): #2,206,265 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6620395 Treatment of phospho gypsum — 2003-09-16
6277171 Method of reducing the iron content of steel slag — 2001-08-21