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Charles S. Duncan
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Pittsburgh, PA, US
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last 30 patents
Information
Patent Grant
Lid for improved dendritic web growth
Patent number
5,098,287
Issue date
Mar 24, 1992
Westinghouse Electric Corp.
Charles S. Duncan
C30 - CRYSTAL GROWTH
Information
Patent Grant
Barrier design for crucibles for silicon dendritic web growth
Patent number
4,919,901
Issue date
Apr 24, 1990
Westinghouse Electric Corp.
Raymond G. Seidensticker
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for silicon web growth of higher output and improved grow...
Patent number
4,828,808
Issue date
May 9, 1989
The United States of America as represented by the United States Department o...
Charles S. Duncan
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for growing dendritic web crystals of constant width
Patent number
4,751,059
Issue date
Jun 14, 1988
Westinghouse Electric Corp.
James P. McHugh
C30 - CRYSTAL GROWTH
Information
Patent Grant
Conforming crucible/susceptor system for silicon crystal growth
Patent number
4,747,774
Issue date
May 31, 1988
Westinghouse Electric Corp.
Paul A. Piotrowski
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for growing a dendritic web
Patent number
4,389,377
Issue date
Jun 21, 1983
The United States of America as represented by the United States Department o...
Charles S. Duncan
C30 - CRYSTAL GROWTH
Information
Patent Grant
Infrared temperature control of Czochralski crystal growth
Patent number
4,058,429
Issue date
Nov 15, 1977
Westinghouse Electric Corporation
Charles Duncan
C30 - CRYSTAL GROWTH