Patents by Inventor Richard E. Litz

Richard E. Litz 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).

  • Selection of fungal resistant grape somatic embryos
    Patent number: 7326826
    Abstract: The invention features a method of selecting for a grape somatic embryo or grape plant having resistance to a plant pathogen using a liquid culture medium. The method including the steps of (a) culturing a grape embryonic culture in a first liquid culture medium to grow a cellular suspension culture, the first liquid culture medium including a plant growth regulator and a filtrate from a plant pathogen culture; (b) recovering an embryogenic cell or embryogenic cell mass from the cellular suspension culture; and (c) culturing the embryogenic cell or embryogenic cell mass in a second liquid culture and in a third culture media to select a grape somatic embryo or a grape plant having resistance to a plant pathogen.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: February 5, 2008
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Dennis J. Gray, Jayasankar Subramanian, Richard E. Litz
  • Regeneration system for grape and uses thereof
    Publication number: 20030005489
    Abstract: The invention features methods of producing a plant or a mature somatic embryo from an embryogenic cell or embryogenic culture. The method includes the steps of: (a) providing a liquid culture that includes an embryogenic cell; (b) recovering embryogenic cell from the culture; (c) transferring the embryogenic cell to a second culture; and (d) growing a mature somatic grape embryo from the embryogenic cell.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 2, 2003
    Inventors: Dennis J. Gray, Jayasankar Subramanian, Richard E. Litz
  • Regeneration system for grape and uses thereof
    Patent number: 6455312
    Abstract: The invention features methods of producing a plant or a mature somatic embryo from an embryogenic cell or embryogenic culture. The method includes the steps of: (a) providing a liquid culture that includes an embryogenic cell; (b) recovering embryogenic cell from the culture; (c) transferring the embryogenic cell to a second culture; and (d) growing a mature somatic grape embryo from the embryogenic cell.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: September 24, 2002
    Assignee: University of Florida
    Inventors: Dennis J. Gray, Jayasankar Subramanian, Richard E. Litz