RA

Robert W. Au

OR Occidental Research: 2 patents #22 of 95Top 25%
Overall (All Time): #2,367,624 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4346062 Chlorination leaching with sulfur extraction for recovery of zinc values — 1982-08-24
4206023 Zinc recovery by chlorination leach — 1980-06-03