Patents by Inventor Amy G. Roberson

Amy G. Roberson 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).

  • Process of making polyester monofilaments for reinforcing tires
    Patent number: 5223187
    Abstract: Polyester of high intrinsic viscosity is spun, steam-heated, drawn and wound up in a multi-stage continuous process to provide an improved monofilament that is particularly suited for reinforcing rubber, e.g. in tires, after suitable dip-coating, stretching and setting.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: June 29, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William A. Chantry, Amy G. Roberson, Taracad K. Venkatachalam