Patents by Inventor Norman K. Hart

Norman K. Hart 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 set
    Patent number: D303114
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 29, 1989
    Assignee: American Telephone and Telegraph Company, AT&T Information Systems
    Inventors: David C. Danielson, Norman K. Hart, Lynnet Koh, John N. McGarvey, Eugene A. Mills
  • Telephone stand
    Patent number: D303115
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 29, 1989
    Assignee: American Telephone and Telegraph Company, AT&T Information Systems
    Inventors: Norman K. Hart, Lynnet Koh, Eugene A. Mills