Hans Grewe

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Grefrath, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a composite powder comprising nanocrystallites emb...
- Patent number 5,149,381
- Issue date Sep 22, 1992
- Fried. Krupp GmbH
- Hans Grewe
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for production of metal-metalmetalloid powders with their a...
- Patent number 5,147,449
- Issue date Sep 15, 1992
- Fried. KRUPP Gesellschaft mit beschrankter Haftung
- Hans Grewe
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Compound body
- Patent number 4,284,687
- Issue date Aug 18, 1981
- Fried. KRUPP Gesellschaft mit beschrankter Haftung
- Klaus Dreyer
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing hard metal bodies of increased wear resistance
- Patent number 4,276,096
- Issue date Jun 30, 1981
- Fried. KRUPP Gesellschaft mit beschrankter Haftung
- Johannes Kolaska
- B22 - CASTING POWDER METALLURGY