Patents by Inventor Anthony T. Thomas

Anthony T. Thomas 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).

  • Anodic aluminium oxide membranes
    Patent number: 4889631
    Abstract: A porous anodic aluminum oxide membrane, at least one surface of which is profiled on a scale of 0.01 to 50 mm, may be made by profiling a surface of an aluminium metal substrate anodizing the substrate to form a porous membrane on the surface and separating the membrane from the substrate. The profiling may consist of a system of parallel ribs and troughs. Structure having an interesting properties as filters can be built up by the use of several such membranes bonded to one another along the crests of the ribs.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: December 26, 1989
    Assignee: Alcan International Limited
    Inventors: William R. Rigby, Robin C. Furneaux, Anthony T. Thomas