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Donald R. Beaman
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Midland, MI, US
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last 30 patents
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Patent Grant
Silicon nitride/silicon carbide composite densified materials prepa...
Patent number
5,643,843
Issue date
Jul 1, 1997
The Dow Chemical Company
Stephen D. Dunmead
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of making a boron carbide cermet with an aluminum oxide layer
Patent number
5,595,622
Issue date
Jan 21, 1997
The Dow Chemical Company
Aleksander J. Pyzik
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for producing silicon nitride/silicon carbide composite
Patent number
5,538,675
Issue date
Jul 23, 1996
The Dow Chemical Company
Stephen D. Dunmead
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon nitride/silicon carbide composite powders
Patent number
5,525,556
Issue date
Jun 11, 1996
The Dow Chemical Company
Stephen D. Dunmead
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Boron carbide cermet structural materials with high flexure strengt...
Patent number
5,508,120
Issue date
Apr 16, 1996
The Dow Chemical Company
Aleksander J. Pyzik
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
SiAlON composites and method of preparing the same
Patent number
5,413,972
Issue date
May 9, 1995
The Dow Chemical Company
Chinmau J. Hwang
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Sialon composites and method of preparing the same
Patent number
5,227,346
Issue date
Jul 13, 1993
The Dow Chemical Company
Chinmau J. Hwang
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Self-reinforced silicon nitride ceramic of high fracture toughness
Patent number
5,160,508
Issue date
Nov 3, 1992
The Dow Chemical Company
Aleksander J. Pyzik
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Self-reinforced silicon nitride ceramic of high fracture toughness...
Patent number
5,118,645
Issue date
Jun 2, 1992
The Dow Chemical Company
Aleksander J. Pyzik
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of preparing a self-reinforced silicon nitride ceramic of hi...
Patent number
5,021,372
Issue date
Jun 4, 1991
The Dow Chemical Company
Aleksander J. Pyzik
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Self-reinforced silicon nitride ceramic of high fracture toughness
Patent number
4,919,689
Issue date
Apr 24, 1990
The Dow Chemical Company
Aleksander J. Pyzik
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Self-reinforced silicon nitride ceramic of high fracture toughness...
Patent number
4,883,776
Issue date
Nov 28, 1989
The Dow Chemical Company
Aleksander J. Pyzik
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES