FR

Frederick J. Richardson

📍 Tonasket, WA: #2 of 5 inventorsTop 40%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #4,085,783 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4256485 Enzyme oxidation of sulfides in minerals — 1981-03-17