Patents by Inventor Raymond A. Niswanger

Raymond A. Niswanger 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).

  • Universal trailer lock
    Patent number: D436064
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: January 9, 2001
    Assignee: Blaylock Industries, Inc.
    Inventor: Raymond A. Niswanger
  • Lock for gooseneck trailer
    Patent number: D450231
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 13, 2001
    Assignee: Blaylock Trailer Products, Inc.
    Inventor: Raymond A. Niswanger
  • Lip-engaging trailer lock
    Patent number: D459970
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: July 9, 2002
    Assignee: Blaylock Trailer Products, Inc.
    Inventor: Raymond A. Niswanger
  • Kingpin Lock
    Patent number: D414675
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: October 5, 1999
    Assignee: Blaylock Industries, Inc.
    Inventor: Raymond A. Niswanger
  • Coupler lock for pintle drawbar eye
    Patent number: D417133
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: November 30, 1999
    Assignee: Blaylock Industries, Inc.
    Inventor: Raymond A. Niswanger