Patents by Inventor Joel Lederhause

Joel Lederhause 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).

  • Vehicle ramp
    Patent number: D595919
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: July 7, 2009
    Assignee: Discount Ramps.com LLC
    Inventors: Joel Lederhause, Robert Krolski
  • Folding vehicular ramp
    Patent number: D595920
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: July 7, 2009
    Assignee: Discount Ramps.com, LLC
    Inventors: Joel Lederhause, Robert Krolski, Richard Belstein
  • Wheelchair lift
    Patent number: D694983
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 3, 2013
    Assignee: Discount Ramps.com, LLC
    Inventors: Joel Lederhause, Robert Krolski