Karl-Heinz Koenig

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Frankfurt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for leaching of precious metals
- Patent number 5,336,474
- Issue date Aug 9, 1994
- Degussa Aktiengesellschaft
- Manfred Diehl
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Substituted thioureas for the separation of complexly bound heavy-m...
- Patent number 4,980,071
- Issue date Dec 25, 1990
- Degussa Aktiengesellschaft
- Michael Schuster
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Organopolysiloxanes containing acyl thiourea groups, methods of the...
- Patent number 4,851,492
- Issue date Jul 25, 1989
- Degussa Aktiengesellschaft
- Peter Panster
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...