Patents by Inventor Donald K. Cartwright

Donald K. Cartwright 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).

  • Microclimate environmental control on vegetation and seeds employing microencapsulated water and phase change materials and method
    Patent number: 6057266
    Abstract: A mycoherbicide is adapted to be sprayed in solution on to an agricultural property such as seeds, germinating seeds, seedlings or plants and comprises a moisturizer such as water which is microencapsulated for time release on to the surface of agricultural property. In a further embodiment of the invention, a microencapsulated phase change material is also added to the solution to control the temperature on the surface of the agricultural property. A sticker is employed to enhance retention of the microcapsules on the agricultural property. The solution operates to control the microclimate on the surface of the agricultural property in order to enhance the effectiveness of the mycoherbicide fungi or bacteria on the host or to provide frost/freeze protection at low temperatures.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: May 2, 2000
    Assignee: Delta Thermal Systems, Inc.
    Inventors: David P. Colvin, Donald K. Cartwright