Helmut Riegger

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Busslingen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Powder metallurgical process for producing a copper-based shape-mem...
- Patent number 4,410,488
- Issue date Oct 18, 1983
- BBC Aktiengesellschaft Brown, Boveri & Cie
- Gernot Gessinger
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Shape-memory alloy based on copper, zinc and aluminum and process f...
- Patent number 4,398,969
- Issue date Aug 16, 1983
- BBC Brown, Boveri & Company, Limited
- Keith Melton
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Memory alloys based on copper or nickel solid solution alloys havin...
- Patent number 4,389,250
- Issue date Jun 21, 1983
- BBC Brown, Boveri & Company Limited
- Keith Melton
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing a memory alloy
- Patent number 4,365,996
- Issue date Dec 28, 1982
- BBC Brown, Boveri & Company Limited
- Keith Melton
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...