Patents by Inventor James S. Prentice

James S. Prentice 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).

  • Laminated non-woven sheet
    Patent number: 4078124
    Abstract: A laminated non-woven sheet battery separator is made from non-woven mats of melt-blown thermoplastic polymer fibers. The non-woven sheets may be produced by either point welding or using adhesives to laminate at least one non-woven mat having a high strip tensile strength to at least one non-woven mat having a high tear resistance so that the sheets have both high strip tensile strength and high tear resistance.
    Type: Grant
    Filed: November 6, 1972
    Date of Patent: March 7, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventor: James S. Prentice