Friedrich Wolstein

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for defluorination of phosphoric acid
- Patent number 4,347,228
- Issue date Aug 31, 1982
- Uhde GmbH
- Friedrich Wolstein
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the separation of solids from phosphoric acid
- Patent number 4,343,780
- Issue date Aug 10, 1982
- Uhde GmbH
- Friedrich Wolstein
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for the treatment of phosphate rock
- Patent number 4,181,703
- Issue date Jan 1, 1980
- Uhde GmbH
- Wilhelm Wengeler
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for the conversion of phosphate rock containing magnesium in...
- Patent number 4,152,397
- Issue date May 1, 1979
- Uhde GmbH
- Friedrich Wolstein
- C05 - FERTILISERS MANUFACTURE THEREOF