Patents by Inventor Ron L. Griffith

Ron L. Griffith 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).

  • Drawn polyester yarn having a high tenacity, a high modulus and a low shrinkage
    Patent number: 6015616
    Abstract: In the instant invention, drawn yarns, with the following properties, are obtained: tenacity of at least 8.5 gpd; initial modulus of at least 150 gpd/100%; and shrinkage of less than 6%. Alternatively, the yarn may be characterized as: tenacity of greater than 10 gpd; initial modulus of greater than 120 gpd/100%; and shrinkage of less than 6%. These yarns are made by a process directed mainly toward affecting the yarn properties as they are spun.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: January 18, 2000
    Assignee: Arteva North America S.A.R.L.
    Inventors: F. Holmes Simons, Ron L. Griffith