Patents by Inventor Allan Robert Vivona

Allan Robert Vivona 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).

  • Double imputation scale
    Patent number: 6974327
    Abstract: An educational device to teach the biblical doctrine of double imputation is disclosed. The educational device is generally comprised of a cross, a balance type scale, and at least three different objects which by casual observation are of unequal mass.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: December 13, 2005
    Inventors: Roy Harold Timpe, Allan Robert Vivona