Patents by Inventor Rex C. Donahey

Rex C. Donahey 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).

  • Post-tensioned insulated wall panels
    Patent number: 7237366
    Abstract: An insulated concrete panel having one or more tendons positioned in the insulation layer inside the panel which are put into tension after the concrete panel has been formed.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: July 3, 2007
    Assignee: Composite Technologies Corporation
    Inventors: Rex C. Donahey, Kim E. Sceber, Robert T. Lone, Sr.
  • Method of designing partially composite concrete sandwich panels and such panels
    Patent number: 7206726
    Abstract: A method for calculating using a digital computer an approximation of properties of a concrete sandwich panel. The method allows for a manufacturer of concrete sandwich panels to design sandwich panels using a range of available components to meet architectural specifications.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: April 17, 2007
    Assignee: Composite Technologies, Corporation
    Inventors: Kim E. Seeber, Rex C. Donahey
  • Post-tensioned insulated wall panels
    Publication number: 20040255530
    Abstract: An insulated concrete panel having one or more tendons positioned in the insulation layer inside the panel which are put into tension after the concrete panel has been formed.
    Type: Application
    Filed: June 23, 2003
    Publication date: December 23, 2004
    Inventors: Rex C. Donahey, Kim E. Sceber, Robert T. Lone
  • Method of designing partially composite concrete sandwich panels and such panels
    Publication number: 20040181379
    Abstract: A method for calculating using a digital computer an approximation of properties of a concrete sandwich panel. The method allows for a manufacturer of concrete sandwich panels to design sandwich panels using a range of available components to meet architectural specifications.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Inventors: Kim E. Seeber, Rex C. Donahey