Patents by Inventor Franz Holawe

Franz Holawe 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).

  • Atmometer
    Patent number: 6048091
    Abstract: An atmometer includes a chamber having arranged in an interior region thereof a medium in fluid communication with a liquid source and adapted for releasably retaining liquid. The chamber also has at another region an opening to the surrounds over which a gas permeable medium is arranged. In one mode of use, the atmometer is positionable such that ambient air moving over the gas permeable medium causes at least a portion of any evaporated liquid in the chamber to diffuse through the gas permeable medium.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: April 11, 2000
    Assignee: The University of Newcastle Research Associates Limited
    Inventors: Graeme N. McIntyre, Herbert Bruce Penfold, Gary Douglas Worth, Franz Holawe