Bernardus J. Damman

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Middelburg, NL

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Patents Grantslast 30 patents

Information Patent Grant
Process and plant for removing lead, cadmium and zinc from dusts
- Patent number 5,451,382
- Issue date Sep 19, 1995
- Hoechst Aktiengesellschaft
- Dirk C. Vermaire
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the removal of lead and cadmium from phosphoric acid
- Patent number 5,431,895
- Issue date Jul 11, 1995
- Hoechst Aktiengesellschaft
- Dirk C. Vermaire
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for reducing metal ions in aqueous solutions
- Patent number 4,670,244
- Issue date Jun 2, 1987
- Hoechst Aktiengesellschaft
- Wouter Roos
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for making alkali metal phosphate solutions containing litt...
- Patent number 4,632,812
- Issue date Dec 30, 1986
- Hoechst Aktiengesellschaft
- Johannes-Wilhelmus Kinneging
- C01 - INORGANIC CHEMISTRY