Patents by Inventor Stuart H. Rice

Stuart H. Rice 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).

  • Variable denier filaments and method of producing same
    Patent number: 4906519
    Abstract: This invention pertains to variable denier filaments prepared from synthetic polymers having a glass transition temperature of at least 30.degree. C. and yarns made therefrom. The filaments have longer length slubs, which results in their use in fabrics desiring a variable texture and dyeing effects. The filaments are prepared by drawing at ambient temperature a feeder yarn having sufficient molecular orientation at carefully controlled draw ratios and in draw zones having a specified length.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: March 6, 1990
    Assignee: BASF Corporation
    Inventors: Wayne S. Stanko, Stuart H. Rice