Patents by Inventor Charles W. H. Matthaei

Charles W. H. Matthaei 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).

  • Diet scale
    Patent number: D280887
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: October 8, 1985
    Assignee: Roman Meal Company
    Inventor: Charles W. H. Matthaei
  • Diet scale platform
    Patent number: D280977
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: October 15, 1985
    Assignee: Roman Meal Company
    Inventor: Charles W. H. Matthaei