Patents by Inventor Joel D. Hansen

Joel D. Hansen 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).

  • Isolation and use of cuticular lipid genes
    Patent number: 6060644
    Abstract: The present invention relates to cuticular lipid genes, their gene products, and methods of use thereof, for the generation of new plant varieties having novel environmental, disease and pest resistance. In particular, certain isolated or enriched nucleic acids specifying cuticular lipid genes, or portions thereof, are disclosed.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: May 9, 2000
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Patrick S. Schnable, Donald S. Robertson, Joel D. Hansen, Basil J. Nikolau, Xiaojie Xu, Yiji Xia
  • Apparatus for screening and trowelling concrete
    Patent number: 5039249
    Abstract: Disclosed is an apparatus for screeding or trowelling concrete or similar materials. The apparatus has a turret, mounted on a mobile frame. A telescopic boom is mounted in cantilevered fashion on the turret. A machine head, mounted on the distal end of the boom, is rotatable about a vertical axis. An attachment, such as a screed or a trowel, is attached to the machine head. The level and angle of the frame can be set to a selected elevation relative to a rotating laser beam by raising or lowering three hydraulic legs. The machine head can raise or lower the attachment to set the attachment at a selected elevation.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: August 13, 1991
    Inventors: Joel D. Hansen, Meloy F. Hansen