G/u/ nther Schimmel

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Erftstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for dearsenifying phosphoric acid solutions
- Patent number 4,668,492
- Issue date May 26, 1987
- Hoechst Aktiengesellschaft
- G/u/ nther Schimmel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for extracting heavy metal ions from aqueous solutions
- Patent number 4,503,016
- Issue date Mar 5, 1985
- Hoechst Aktiengesellschaft
- G/u/ nther Schimmel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the separation of heavy metal compounds from phosphoric...
- Patent number 4,479,924
- Issue date Oct 30, 1984
- Hoechst Aktiengesellschaft
- Helmold von Plessen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...