Inventor · disambiguated record
Jaroslav R. Derka
Also filed as: DERKA JAROSLAV R
3 granted patents·14 citations·filing 1991–1992
65Inventor score
Technology areasC01G
Top patents by PatentIndex Score
3 records- 0137US5194241AManufacture of hydroxylated ferric sulphate compoundEAGLEBROOK INTERNATIONAL INC·Filed 1991·Granted Mar 16, 1993·6 cites·21 claims
- 0232US5194240AManufacture of ferric sulphateEAGLEBROOK INTERNATIONAL INC·Filed 1991·Granted Mar 16, 1993·4 cites·10 claims
- 0329US5332565AManufacture of ferric sulphate compoundsB P M IND INC·Filed 1992·Granted Jul 26, 1994·4 cites·37 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →