Patents by Inventor Wong Wei Cheong

Wong Wei Cheong 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).

  • Powder-free nitrile-coated gloves with an intermediate rubber-nitrile layer between the glove and the coating and method of making same
    Patent number: 6673404
    Abstract: Powder-free natural rubber and synthetic elastomeric articles, in particular, gloves, having an inner coating of a nitrile rubber with an intermediate layer of a rubber blend comprised of natural or synthetic rubber and nitrile rubber interposed between the nitrile coating and the base glove and their method of manufacture are described. The intermediate layer of the rubber blend interposed between the coating and the glove imparts a unique surface texture to the glove which aids donning and eliminates self-sticking of the inner glove surfaces, especially after the glove has been sterilized by radiation. Additionally the gloves of the invention exhibit good grippability, good donnability, superior tensile strength, elongation to break and stress at 500% elongation.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: January 6, 2004
    Assignee: Allegiance Corporation
    Inventors: Yun-Siung Tony Yeh, Duanna Zhu, Wong Wei Cheong, Sharon Mi Lyn Tan