Patents by Inventor William N. Haggerty

William N. Haggerty 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).

  • Glass fibers sized with vinyl acetate copolymers
    Patent number: 4126729
    Abstract: Disclosed are gun roving glass fibers coated with an aqueous-based size comprising an epoxidized polyvinyl acetate copolymer in combination with a vinyl acetate-ethylene copolymer and a vinyl acetate copolymer.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: November 21, 1978
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Tom A. Richardson, William N. Haggerty, Fred G. Krautz
  • Glass sizing
    Patent number: 3968068
    Abstract: A sizing composition for glass fibers is disclosed, the sizing containing a silane coupling agent, a chromic complex, a vinyl acetate copolymer and a polyvinyl acetate homopolymer, the sizing being particularly suitable for application to gun roving.
    Type: Grant
    Filed: June 7, 1974
    Date of Patent: July 6, 1976
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: William N. Haggerty