Wilfried Gutknecht

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Hanover, DE

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Patents Grantslast 30 patents

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Electric-field emulsion-breaking device
- Patent number 4,981,569
- Issue date Jan 1, 1991
- Metallgesellschaft AG
- Karl Schugerl
- C01 - INORGANIC CHEMISTRY
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Emulsion-forming composition
- Patent number 4,904,412
- Issue date Feb 27, 1990
- Metallgesellschaft AG
- Karl Schugerl
- C01 - INORGANIC CHEMISTRY
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Process for selectively recovering Ge and as from aqueous solutions
- Patent number 4,775,479
- Issue date Oct 4, 1988
- Metallgesellschaft AG
- Karl Schugerl
- C01 - INORGANIC CHEMISTRY