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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for introducing gas to molten metal
Patent number
4,568,066
Issue date
Feb 4, 1986
Osterreichisch Amerikanische Magnesit Aktiengesellschaft
Bernd Grabner
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Refractory chrome-magnesia bricks and compositions made from granul...
Patent number
4,366,256
Issue date
Dec 28, 1982
Osterreichisch-Amerikanische Magnesit Aktiengesellschaft
Gunther L. Mortl
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process of producing sintered magnesia
Patent number
3,987,135
Issue date
Oct 19, 1976
Osterreichisch-Amerikanische Magnesit Aktiengesellschaft
Erich Eigner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for production of cement-bonded molded articles particularly...
Patent number
3,981,950
Issue date
Sep 21, 1976
Osterreichisch-Amerikanische Magnesit Aktiengesellschaft
Fridolin Pletzer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Clamping device for screen bottoms
Patent number
3,968,033
Issue date
Jul 6, 1976
Osterreichisch-Amerikanische Magnesit Aktiengesellschaft
Heinrich Illemann
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Carbon impregnation of burned magnesite bricks
Patent number
3,959,532
Issue date
May 25, 1976
Osterreichisch-Amerikanische Magnesit Aktiengesellschaft
Gunter Zoglmeyr
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73608915 - PERFRIT
Serial number
73608915
Registration number
1497744
Filing date
Jul 11, 1986
OSTERREICHISCH-AMERIKANISCHE MAGNESIT AKTIENGESELLSCHAFT
19 - Building materials (non-metallic)
Information
Trademark
73122166 - RADEX
Serial number
73122166
Registration number
1084792
Filing date
Apr 11, 1977
OSTERREICHISCH-AMERIKANISCHE MAGNESIT AKTIENGESELLSCHAFT
19 - Building materials (non-metallic)