Patents by Inventor Stuart Philip Hepburn

Stuart Philip Hepburn 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).

  • Fibrous materials
    Patent number: 3996145
    Abstract: A fibrous structure, for example, a batt, mat, blanket, felt, cloth, paper or board, comprising staple fibers of polycrystalline alumina, alumina/silica, or zirconia having an average diameter of 0.5 to 5 microns, not greater than 20% by number of the fibers having a diameter greater than 5 microns and the shot content of the fibers being less than 5% by weight.
    Type: Grant
    Filed: November 26, 1973
    Date of Patent: December 7, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Stuart Philip Hepburn