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Darral V. Humphries
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Allentown, PA, US
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last 30 patents
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Patent Grant
Methods of and apparatus for producing biaxially oriented polymer p...
Patent number
4,956,140
Issue date
Sep 11, 1990
Aluminum Company of America ALCOA Laboratories
Rolf Rolles
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Methods of producing biaxially-oriented polymer product, and the pr...
Patent number
4,874,657
Issue date
Oct 17, 1989
Kusan, Inc.
Ying-Cheng Lo
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the hydrostatic extrusion of thermoplastic polymers
Patent number
4,449,904
Issue date
May 22, 1984
Bethlehem Steel Corporation
Alfred R. Austen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for hydrostatic extrusion of thermoplastic polymers
Patent number
4,363,611
Issue date
Dec 14, 1982
Bethlehem Steel Corporation
Alfred R. Austen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Biaxially oriented thermoplastic polymer film and method of manufac...
Patent number
4,341,827
Issue date
Jul 27, 1982
Bethlehem Steel Corporation
Alfred A. Austen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Oriented, semi-crystalline polymer product and method and apparatus...
Patent number
4,282,277
Issue date
Aug 4, 1981
Bethlehem Steel Corporation
Alfred R. Austen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Sealed wire rope
Patent number
4,123,894
Issue date
Nov 7, 1978
Bethlehem Steel Corporation
Charles R. Hughes
D07 - ROPES CABLES OTHER THAN ELECTRIC