Patents by Inventor Wayne L Johnston

Wayne L Johnston 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).

  • Portable vehicle wheel raising ramp
    Patent number: 6135420
    Abstract: A portable vehicle wheel raising ramp for providing a ramp assembly highly useful for raising a wheel of a tandem wheel vehicle. The portable vehicle wheel raising ramp includes a pair of ramp portions. Each of the ramp portions comprises a ramp member having a bottom for resting on a ground surface. The bottom defines a first plane. An inclined wall defines a plane oriented at an angle with respect to the first plane. A resting wall defines a plane oriented substantially parallel to the first plane. The ramp members are pivotally connected together. A pivot structure connects the ramp members in a manner permitting pivoting about an axis lying in the first plane. The ramp members are adapted to pivot between an operative position and a storage position. A latch structure is for holding the ramp members in the storage position. A locking structure is for locking the ramp members in the operative position.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: October 24, 2000
    Inventors: Wayne L. Johnston, Larry C. Jennings
  • Toilet training timepiece
    Patent number: D455662
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: April 16, 2002
    Inventors: Wayne L Johnston, Lorie A Reizer