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ERNST GUGEL
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RODENTAL, DE
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Patents Grants
last 30 patents
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Patent Grant
Sintered silicon nitride, components made therewith, specially valv...
Patent number
6,395,661
Issue date
May 28, 2002
Bayer Aktiengesellschaft
Gerhard Wötting
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for production of a Si.sub.3 N.sub.4, based material
Patent number
5,308,561
Issue date
May 3, 1994
Bayer AG
Gerhard Leimer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Ceramics based on aluminum titanate, process for their production a...
Patent number
5,288,672
Issue date
Feb 22, 1994
Bayer Aktiensesellschaft
Ernst Gugel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Sintered ceramic materials based on aluminium titanate, a process f...
Patent number
5,153,153
Issue date
Oct 6, 1992
Bayer Aktiengesellschaft
Bernhard Freudenberg
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Zirconyl phosphate ceramics, a process for their production and the...
Patent number
4,990,473
Issue date
Feb 5, 1991
Bayer Aktiengesellschaft
Ernst Gugel
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for the production of a polycrystalline shaped body of silic...
Patent number
4,495,122
Issue date
Jan 22, 1985
Feldmuhle Aktiengesellschaft
Gerhard Leimer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Polycrystalline shaped body of silicon carbide and method for its p...
Patent number
4,486,543
Issue date
Dec 4, 1984
Feldmuhle Aktiengesellschaft
Gerhard Leimer
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
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Patent Application
SINTERED SILICON NITRIDE, COMPONENTS MADE THEREWITH, SPECIALLY VALV...
Publication number
20020006859
Publication date
Jan 17, 2002
GERHARD WOTTING
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES