Patents by Inventor Frederick Doran

Frederick Doran 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).

  • Polymer pore structure
    Patent number: 6106897
    Abstract: A method of manufacturing a polymer pore filter for filtering kaolin particles from an aqueous medium, comprising the steps of: coating and partially impregnating at least one face of a woven polyester textile substrate with a polyether based polyurethane polymer; coagulating the polymer by heating in the presence of a coagulant; and forming the polymer simultaneously with or immediately after coagulation.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: August 22, 2000
    Assignee: Scapa Group Plc
    Inventors: Paul Wroblewski, Frederick Doran
  • Coated textile materials
    Patent number: 5194322
    Abstract: A coated textile material, particularly for use as a durable filter fabric, is made from a textile substrate, such as a woven fabric, having a microporous coating of an elastomeric fluorocarbon polymer. The substrate may be formed from aramid or polyphenylene sulphide or glass fibres. The elastomeric polymer may be a vinylidene fluoride pentafluoropropene tetrafluoroethylene terpolymer. The microporous coating may be applied as a formed aqueous emulsion which is dried and mechanically crushed.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: March 16, 1993
    Assignee: Scapa Group Plc
    Inventor: Frederick Doran