Patents by Inventor Donald G. Mayer

Donald G. Mayer 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).

  • Wheeled carrier for panel materials
    Patent number: 5226656
    Abstract: A movable dolly or carrier for transporting doors, windows, or other construction panels. A wheeled base includes panel support members and a reversibly attached storage compartment.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: July 13, 1993
    Inventor: Donald G. Mayer