Patents by Inventor Dale Z. Hendrixson

Dale Z. Hendrixson 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 and method for treating trees
    Patent number: 4103456
    Abstract: The apparatus of this invention is an element that has at one end the means for attaching to that end a pressurized vessel containing the material which is to be used in treating a tree and at the other end outlets for the said material which outlets are correlated to be positioned right at certain prepared exposed areas of the tree into which the material is to be directed. In between the two ends there is a valve means that is in conduit relationship with the passageway between the two said ends.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: August 1, 1978
    Inventors: Dale Z. Hendrixson, John C. Macbeth