Patents by Inventor Roman J. Szalek

Roman J. Szalek 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).

  • Clock
    Patent number: D243071
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: January 18, 1977
    Assignee: General Time Corporation
    Inventors: Ellworth R. Danz, Roman J. Szalek
  • Travel alarm clock
    Patent number: D256782
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: September 9, 1980
    Assignee: General Time Corporation
    Inventors: Ellworth R. Danz, Roman J. Szalek