Patents by Inventor Philip R. Hetland

Philip R. Hetland 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).

  • Patent number: 4214547
    Abstract: An amusement device comprising a boat, for a rider, which is formed of lightweight material, and permits the rider to stand on the boat much like on a surf board and by rolling the boat about its longitudinal axis causing provided fins to flex and form propulsion apparatus for the boat.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: July 29, 1980
    Inventor: Philip R. Hetland
  • Patent number: 4173351
    Abstract: A lawn litter sled for the purpose of hauling leaves, grass clippings, papers, twigs and other such matter. A precut, corrugated cardboard may be assembled into a rectangular, or other geometric form, sled that when filled with lawn litter may be easily dragged along the ground. The said apparatus has a folding loading panel which, when in a horizontal position, enables the user to sweep lawn litter into the said sled, then by positioning the loading panel into a vertical position and by pulling on a provided rope, the loading panel may be secured in a vertical position by frictional forces the loading panel is attached to side panels through which fold and hold the loading panel upright to secure the contents of the sled.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: November 6, 1979
    Inventor: Philip R. Hetland