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Joseph J. Welkey
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Houston, TX, US
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last 30 patents
Information
Patent Grant
Tapered split ring shell closure
Patent number
5,984,001
Issue date
Nov 16, 1999
Brown Fintube Company
Joseph Welkey
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Mixed finned tube and bare tube heat exchanger tube bundle
Patent number
5,472,047
Issue date
Dec 5, 1995
Brown Fintube
Joseph J. Welkey
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat exchanger tube spacer, separator, and support
Patent number
5,449,037
Issue date
Sep 12, 1995
Brown Fintube Corporation
Joseph J. Welkey
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Compound-taper flange assembly
Patent number
4,909,548
Issue date
Mar 20, 1990
Bas-Tex Corporation
Joseph J. Welkey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Trapezoidal seal ring connection
Patent number
4,861,077
Issue date
Aug 29, 1989
Taper Lock
Joseph J. Welkey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Apparatus for making a swiveled flow line connection
Patent number
4,840,410
Issue date
Jun 20, 1989
Joseph J. Welkey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Swivel flow line connector
Patent number
4,840,409
Issue date
Jun 20, 1989
Taper-Lok Corporation
Joseph J. Welkey
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...