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Walter D. Johnson
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Midlothian, VA, US
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last 30 patents
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Patent Grant
Annealed polyester filaments and a process for making them
Patent number
4,704,329
Issue date
Nov 3, 1987
E. I. Du Pont de Nemours and Company
Jack A. Hancock
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Process of making crimped, annealed polyester filaments
Patent number
4,639,347
Issue date
Jan 27, 1987
E. I. Du Pont de Nemours and Company
Jack A. Hancock
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING