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STEMCOR CORPORATION
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CLEVELAND, OH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for making hexagonal silicon carbide platelets with the addi...
Patent number
5,202,105
Issue date
Apr 13, 1993
Stemcor Corporation
Wolfgang D. G. Boecker
C30 - CRYSTAL GROWTH
Information
Patent Grant
Molten metal-resistant ceramic fiber-containing composition
Patent number
5,194,407
Issue date
Mar 16, 1993
Stemcor Corporation
Steven J. Waisala
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Hexagonal silicon carbide platelets and preforms and methods for ma...
Patent number
5,002,905
Issue date
Mar 26, 1991
Stemcor Corporation
Wolfgang D. G. Boecker
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method and means for processing an analog signal from a diode array
Patent number
4,990,765
Issue date
Feb 5, 1991
Stemcor Corporation
Miroslav Ondris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hexagonal silicon carbide platelets and preforms and methods for ma...
Patent number
4,981,665
Issue date
Jan 1, 1991
Stemcor Corporation
Wolfgang D. G. Boecker
C30 - CRYSTAL GROWTH
Information
Patent Grant
Multiple-use molten metal filters
Patent number
4,964,993
Issue date
Oct 23, 1990
Stemcor Corporation
Edwin P. Stankiewicz
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Oxygen-sensing element
Patent number
4,925,609
Issue date
May 15, 1990
Stemcor Corporation
Hisao Yamada
G01 - MEASURING TESTING
Information
Patent Grant
Light biased photoresponsive array
Patent number
4,910,412
Issue date
Mar 20, 1990
Stemcor Corporation
Miroslav Ondris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dispersing gas into molten metal
Patent number
4,898,367
Issue date
Feb 6, 1990
The Stemcor Corporation
Paul V. Cooper
C21 - METALLURGY OF IRON
Information
Patent Grant
Modular furnace lining and hardware system therefor
Patent number
4,885,890
Issue date
Dec 12, 1989
Stemcor Corporation
Gary W. Deren
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Silicon carbide-to-metal joint and method of making same
Patent number
4,871,108
Issue date
Oct 3, 1989
Stemcor Corporation
Wolfgang D. G. Boecker
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of manufacturing a molten metal-resistant ceramic fiber comp...
Patent number
4,868,142
Issue date
Sep 19, 1989
Stemcor Corporation
Steven J. Waisala
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Monolithic catalytic converter mounting arrangement
Patent number
4,863,700
Issue date
Sep 5, 1989
Stemcor
John D. Ten Eyck
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Modular furnace lining and hardware system therefor
Patent number
4,850,171
Issue date
Jul 25, 1989
Stemcor Corporation
Gary W. Deren
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Spray-applied ceramic fiber insulation
Patent number
4,822,679
Issue date
Apr 18, 1989
Stemcor Corporation
Juan M. Cerdan-Diaz
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Modular furnace lining and hardware system therefor
Patent number
4,803,822
Issue date
Feb 14, 1989
Stemcor Corporation
Gary W. Deren
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Arsenate dopant sources and method of making the sources
Patent number
4,798,764
Issue date
Jan 17, 1989
Stemcor Corporation
Richard E. Tressler
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Composite material of discontinuous silicon carbide particles and c...
Patent number
4,795,673
Issue date
Jan 3, 1989
Stemcor Corporation
Francis J. Frechette
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method and apparatus to produce a hot fluidizing gas
Patent number
4,790,986
Issue date
Dec 13, 1988
Stemcor Corporation
Jonathan J. Kim
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Near net shape fused cast refractories and process for their manufa...
Patent number
4,791,077
Issue date
Dec 13, 1988
Stemcor Corporation
Jonathan J. Kim
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Interconnected array of photosensors for simultaneously sensing lig...
Patent number
4,785,191
Issue date
Nov 15, 1988
Stemcor Corporation
Miroslav Ondris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Photovoltaic device responsive to ultraviolet radiation
Patent number
4,772,335
Issue date
Sep 20, 1988
Stemcor Corporation
Wingo C. Huang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making improved photovoltaic heterojunction structures
Patent number
4,764,261
Issue date
Aug 16, 1988
Stemcor Corporation
Miroslav Ondris
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor dopant source
Patent number
4,749,615
Issue date
Jun 7, 1988
Stemcor Corporation
Alan M. Bonny
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Oxygen-sensing element
Patent number
4,740,288
Issue date
Apr 26, 1988
Stemcor Corporation
Hisao Yamada
G01 - MEASURING TESTING
Information
Patent Grant
Mobile holding furnace having metering pump
Patent number
4,739,974
Issue date
Apr 26, 1988
Stemcor Corporation
George S. Mordue
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Double layer capacitors with polymeric electrolyte
Patent number
4,730,239
Issue date
Mar 8, 1988
Stemcor Corporation
John C. Currie
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered silicon carbide ceramic body of high electrical resistivity
Patent number
4,701,427
Issue date
Oct 20, 1987
Stemcor Corporation
Wolfgang D. G. Boecker
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Vibratory grinding of silicon carbide
Patent number
4,695,294
Issue date
Sep 22, 1987
Stemcor Corporation
Tadeusz M. Korzekwa
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Sintered silicon carbide/carbon composite ceramic body having fine...
Patent number
4,692,418
Issue date
Sep 8, 1987
Stemcor Corporation
Wolfgang D. G. Boecker
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73712840 - SCREW LOC
Serial number
73712840
Registration number
1510964
Filing date
Feb 22, 1988
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73712838 - SPACE FELT
Serial number
73712838
Registration number
1535282
Filing date
Feb 22, 1988
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73712836 - THREAD LOC
Serial number
73712836
Registration number
1523478
Filing date
Feb 22, 1988
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73712837 - ANCHOR-LOC
Serial number
73712837
Registration number
1511767
Filing date
Feb 22, 1988
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73656241 - DURASET
Serial number
73656241
Registration number
1480798
Filing date
Apr 20, 1987
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73641792 - FYRE PUTTY
Serial number
73641792
Registration number
1484255
Filing date
Jan 28, 1987
STEMCOR CORPORATION
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73641793 - SIALFRAX-HDAR
Serial number
73641793
Registration number
1483458
Filing date
Jan 28, 1987
STEMCOR CORPORATION
19 - Building materials (non-metallic)