Patents by Inventor Daniel E. Wittum

Daniel E. Wittum 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).

  • Patent number: D320433
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: October 1, 1991
    Assignee: Masco Corporation of Indiana
    Inventors: Alfons Knapp, Daniel E. Wittum
  • Patent number: D320645
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: October 8, 1991
    Assignee: Masco Corporation of Indiana
    Inventors: Alfons Knapp, Daniel E. Wittum