Patents by Inventor Allen R. Willis

Allen R. Willis 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: 5788450
    Abstract: Machine for picking up limb and trunk portions of trees and other types of vegetation and transporting the portions through narrow passageways like a chain link gate. This machine is especially useful in populated areas for collecting branches and tree trunks from pruning or removal operations and moving them from closely spaced backyards or houses, walks and narrow gates to a truck at the curb of a street without damage to the lawns or walks.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: August 4, 1998
    Inventor: Allen R. Willis