Patents by Inventor Wu-Nan Haung

Wu-Nan Haung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5612083
    Abstract: A multi-layer flexible article includes a first layer of natural rubber, a second layer of natural rubber, polyurethane, poly(acrylamide-acrylic acid, sodium salt) and polyethylene oxide and a third layer of acrylic copolymer and fluorocarbon telomer resin. The article is preferably a glove formed by the method of dipping a hand shaped mold into baths containing aqueous emulsions of the components used to form the layers. Gloves manufactured according to the method are substantially wet-hand and dry-hand donnable as compared to powdered latex gloves of similar size. The finished gloved is water washed and wet autoclaved to substantially reduce the protein content from the natural rubber and substantially remove other water extractable allergenic moieties. The washing and autoclaving renders the glove substantially hypoallergenic as compared to gloves not so treated.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: March 18, 1997
    Assignee: Maxxim Medical, Inc.
    Inventors: Wu-Nan Haung, Niles R. Manwill, Adana Muschelewicz, Fung-Bor Chen
  • Patent number: 5601870
    Abstract: A multi-layer flexible article includes a first layer of natural rubber, a second layer of natural rubber, polyurethane, poly(acrylamide/acrylic acid) and polyethylene oxide and a third layer of acrylic copolymer and fluorocarbon telomer resin. The article is preferably a glove formed by the method of dipping a hand shaped mold into baths containing aqueous emulsions of the components used to form the layers. Gloves manufactured according to the method are substantially wet-hand and dry-hand donnable as compared to powdered latex gloves of similar size. The finished gloved is water washed and wet autoclaved to substantially reduce the protein content from the natural rubber and substantially remove other water extractable allergenic moieties. The washing and autoclaving renders the glove substantially hypoallergenic as compared to gloves not so treated.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: February 11, 1997
    Assignee: Maxxim Medical, Inc.
    Inventors: Wu-Nan Haung, Niles R. Manwill, Adana Muschelewicz, Fung-Bor Chen
  • Patent number: 5545451
    Abstract: A multi-layer flexible article includes a first layer of natural rubber, a second layer of natural rubber, polyurethane, poly(acrylamide/acrylic acid) and polyethylene oxide and a third layer of acrylic copolymer and fluorocarbon telomer resin. The article is preferably a glove formed by the method of dipping a hand shaped mold into baths containing aqueous emulsions of the components used to form the layers. Gloves manufactured according to the method are substantially wet-hand and dry-hand donnable as compared to powdered latex gloves of similar size. The finished gloved is water washed and wet autoclaved to substantially reduce the protein content from the natural rubber and substantially remove other water extractable allergenic moieties. The washing and autoclaving renders the glove substantially hypoallergenic as compared to gloves not so treated.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: August 13, 1996
    Assignee: Maxxim Medical, Inc.
    Inventors: Wu-Nan Haung, Niles R. Manwill, Adana Muschelewicz, Fung-Bor Chen