LO

Leo Ottrok

📍 Oroville, CA: #46 of 97 inventorsTop 50%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,976,134 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4671868 Method for recovering gold, platinum or silver from an ore containing gold dust, platinum dust or silver dust 1987-06-09