Patents by Inventor John M. Wuerz

John M. Wuerz 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).

  • Telephone dialer adjunct
    Patent number: D304587
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: November 14, 1989
    Assignees: American Telephone and Telegraph Company, AT&T Information Systems Inc.
    Inventors: David C. Danielson, James J. Hartmann, John N. McGarvey, Alvin R. Tilley, John M. Wuerz