Patents by Inventor Richard J. LaDuca

Richard J. LaDuca 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).

  • Fermentation of microorganisms having ice nucleation activity using a temperature change
    Patent number: 5413932
    Abstract: A method for the fermentation of microorganisms having a high level of ice nucleating activity is disclosed. A high productivity in the fermentation is achieved by using a certain amount of nitrogen source during the growth phase and low temperature during the stationary phase of the fermentation.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: May 9, 1995
    Assignee: Genencor International, Inc.
    Inventors: Richard J. Lawless, Jr., Richard J. LaDuca
  • Fermentation of microorganisms having ice nucleation activity using a temperature change
    Patent number: 5153134
    Abstract: A method for the fermentation of microorganisms having a high level of ice nucleating activity is disclosed. A high productivity in the fermentation is achieved by using a certain amount of nitrogen source during the growth phase and low temperature during the stationary phase of the fermentation.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: October 6, 1992
    Assignee: Genencor International, Inc.
    Inventors: Richard J. Lawless, Jr., Richard J. LaDuca