Patents by Inventor David G. Henry

David G. Henry 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).

  • Device for carrying sheet or panel material
    Patent number: 4235355
    Abstract: A device for carrying large sheets of material (such as plywood or gypsum wallboard) both efficiently and without damage. The device includes a pair of brackets for engaging the two lower corners of a sheet of material and a flexible line connecting the pair of brackets. A person wishing to lift and carry the material grasps the flexible line and exerts an upward force thereupon to lift the material off the ground.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: November 25, 1980
    Inventors: David G. Henry, Karen A. Paulsen