Jaroslav R. Derka

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West Hill, CA

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Patents Grantslast 30 patents

Information Patent Grant
Manufacture of ferric sulphate
- Patent number 5,194,240
- Issue date Mar 16, 1993
- Eaglebrook International, Inc.
- Jaroslav R. Derka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Manufacture of hydroxylated ferric sulphate compound
- Patent number 5,194,241
- Issue date Mar 16, 1993
- Eaglebrook International, Inc.
- Jaroslav R. Derka
- C01 - INORGANIC CHEMISTRY