Patents by Inventor Joseph E. Ballard

Joseph E. Ballard 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).

  • Treated fabrics and process
    Patent number: 4115562
    Abstract: Fabrics produced from aromatic sulfide polymers are rendered water-repellent by heat treatment near, but below, the melting point of the polymer for a finite period of time. The resulting heat-treated fabric is suitable for flame retardant tents, waterproof clothing, filters, etc.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: September 19, 1978
    Assignee: Phillips Petroleum Company
    Inventors: James T. Gragson, Joseph E. Ballard
  • Treated fabrics and process
    Patent number: 4029639
    Abstract: Fabrics produced from aromatic sulfide polymers are rendered water-repellent by heat treatment near, but below, the melting point of the polymer for a finite period of time. The resulting heat-treated fabric is suitable for flame retardant tents, waterproof clothing, filters, etc.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: June 14, 1977
    Assignee: Phillips Petroleum Company
    Inventors: James T. Gragson, Joseph E. Ballard