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Wilfred Sweeny
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Wilmington, DE, US
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last 30 patents
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Patent Grant
Silver-plated fibers of poly(p-phenylene terephthalamide) and a pro...
Patent number
5,549,972
Issue date
Aug 27, 1996
E. I. Du Pont de Nemours and Company
Che-Hsiung Hsu
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Polybenzobisthiazole and polybenzobisoxazole fibers of improved com...
Patent number
5,100,434
Issue date
Mar 31, 1992
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for preparing melt-processible aromatic polyamides with alk...
Patent number
5,077,377
Issue date
Dec 31, 1991
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing paper from a poly(paraphenylene terephthalami...
Patent number
5,021,123
Issue date
Jun 4, 1991
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Melt-processible aromatic containing copolyamide from 3,4'-bis (ami...
Patent number
4,980,446
Issue date
Dec 25, 1990
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of a poly(paraphenylene terephthalamide...
Patent number
4,959,453
Issue date
Sep 25, 1990
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Solvent system for difficultly soluble polymers
Patent number
4,785,038
Issue date
Nov 15, 1988
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ester interchange polyester preparation with alkali metal fluoride...
Patent number
4,782,131
Issue date
Nov 1, 1988
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for making PBO and PBT polymers
Patent number
4,608,427
Issue date
Aug 26, 1986
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cyclization of acrylic fiber
Patent number
4,603,041
Issue date
Jul 29, 1986
E. I. Du Pont de Nemours and Company
Wilfred Sweeny
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...