Patents by Inventor David Manger

David Manger 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).

  • Foundation ventilator plug
    Patent number: D438300
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: February 27, 2001
    Assignee: Kaibab Metals, Inc.
    Inventor: David Manger
  • Handle for foundation ventilator plug
    Patent number: D441858
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: May 8, 2001
    Assignee: Kaibab Metals, Inc.
    Inventor: David Manger