JD

Jaroslav R. Derka

📍 Peace River, CA: #4 of 23 inventorsTop 20%
Overall (All Time): #1,655,135 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5332565 Manufacture of ferric sulphate compounds — 1994-07-26
5194240 Manufacture of ferric sulphate — 1993-03-16
5194241 Manufacture of hydroxylated ferric sulphate compound — 1993-03-16