G. A. Horst Siewert

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Freigericht, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for sputter coating a gold alloy onto a subst...
- Patent number 4,882,022
- Issue date Nov 21, 1989
- Leybold Aktiengesellschaft
- Dieter Hoffman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Multiple-substance alloy for targets of cathode sputtering apparatus
- Patent number 4,808,373
- Issue date Feb 28, 1989
- Leybold-Heraeus GmbH
- Dieter Hoffman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Multicomponent alloy for sputtering targets
- Patent number 4,466,940
- Issue date Aug 21, 1984
- Demetron Gesellschaftfur Electronik-Werstoffe mbh
- G. A. Horst Siewert
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...