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Joseph C. Sofianek
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Broomall, PA, US
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last 30 patents
Information
Patent Grant
Method of assembling a shield assembly of a vacuum interrupter
Patent number
4,733,456
Issue date
Mar 29, 1988
General Electric Company
Joseph C. Sofianek
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Shield assembly of a vacuum interrupter
Patent number
4,665,287
Issue date
May 12, 1987
General Electric Company
Joseph C. Sofianek
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Guide means for the movable contact rod of a vacuum interrupter
Patent number
4,492,837
Issue date
Jan 8, 1985
General Electric Company
Donald W. Crouch
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Compact high-current vacuum circuit interrupter comprising a metal...
Patent number
4,039,792
Issue date
Aug 2, 1977
General Electric Company
Donald Wayne Crouch
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum-type circuit interrupter with two sets of contacts electrica...
Patent number
4,029,921
Issue date
Jun 14, 1977
General Electric Company
Joseph A. Rich
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High current vacuum circuit interrupter with beryllium contact
Patent number
4,028,514
Issue date
Jun 7, 1977
General Electric Company
Donald R. Kurtz
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum-type circuit interrupter with two sets of contacts electrica...
Patent number
3,996,438
Issue date
Dec 7, 1976
General Electric Company
Donald R. Kurtz
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum-type circuit interrupter with a plurality of sets of contact...
Patent number
3,969,598
Issue date
Jul 13, 1976
General Electric Company
Joseph C. Sofianek
H01 - BASIC ELECTRIC ELEMENTS