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Ervin T. Powers Jr.
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Midlothian, VA, US
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Patents Grants
last 30 patents
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Patent Grant
Process for improving electrostatic charging of plexifilaments
Patent number
6,455,619
Issue date
Sep 24, 2002
E. I. DuPont de Nemours and Company
David Jackson McGinty
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Wand purging for electrostatic charging system in flash spinning ap...
Patent number
5,750,152
Issue date
May 12, 1998
E. I. Du Pont de Nemours and Company
Ervin Townsend Powers
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Flash-spinning process
Patent number
5,707,580
Issue date
Jan 13, 1998
E. I. Du Pont de Nemours and Company
Daniel Scott Colley
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for improving electrostatic charging of plexifilaments
Patent number
5,643,525
Issue date
Jul 1, 1997
E. I. Du Pont de Nemours and Company
David Jackson McGinty
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Wand purging for electrostatic charging system in flash spinning pr...
Patent number
5,558,830
Issue date
Sep 24, 1996
E. I. Du Pont de Nemours and Company
Ervin T. Powers
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Method for improving solvent containment
Patent number
5,075,049
Issue date
Dec 24, 1991
E. I. Du Pont de Nemours and Company
David W. Gillespie
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING