Patents by Inventor Timothy W. McCardle

Timothy W. McCardle 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).

  • Functionally gradient polymeric materials
    Patent number: 6313237
    Abstract: Functionally gradient polymeric materials are formed by a process that utilizes an ascending polymerization front. A polymerization front is initiated in a reaction vessel containing a monomer solution. Additional monomers or resins are added on top of the polymerization front to maintain a substantially constant level. The composition of the monomers and/or additives are varied as they are added to the reaction vessel to form a functionally gradient polymeric material.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 6, 2001
    Assignee: The University of Southern Mississippi
    Inventors: John A. Pojman, Timothy W. McCardle
  • Functionally gradient polymeric materials
    Patent number: 6057406
    Abstract: Functionally gradient polymeric materials are formed by a process that utilizes an ascending polymerization front. A polymerization front is initiated in a reaction vessel containing a monomer solution. Additional monomers or resins are added on top of the polymerization front to maintain a substantially constant level. The composition of the monomers and/or additives are varied as they are added to the reaction vessel to form a functionally gradient polymeric material.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: May 2, 2000
    Assignee: The University of Southern Mississippi
    Inventors: John A. Pojman, Timothy W. McCardle