Patents by Inventor Michael J. Bulley

Michael J. Bulley 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).

  • High temperature ceramic filter
    Patent number: 6214078
    Abstract: A porous refractory product suitable for use in filtering high temperature combustion products. The product includes a matrix of recrystallized silicon carbide formed by heating a cast preform containing relatively coarse silicon carbide crystals selected to produce the desired permeability, and relatively fine silicon carbide crystals to a temperature of at least 2320° C. At this temperature, the relatively fine silicon carbide crystals sublime and condense on the relatively large crystals. This results in recrystallization of the cast preform to form the porous matrix with the desired permeability.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: April 10, 2001
    Assignee: Ferro Corporation
    Inventors: Philip S. Way, Thomas J. Vlach, Michael J. Bulley