Patents by Inventor Ken Langfelder

Ken Langfelder 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).

  • Closure for a container cover
    Patent number: D793231
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 1, 2017
    Assignee: RTODDS ENGINEERING, LLC
    Inventors: Ken Langfelder, Robert Todd Swinderman