Patents by Inventor Peter Lipke

Peter Lipke 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).

  • Publication number: 20180119090
    Abstract: The present invention relates to a process for enhancing the growth and increasing the biomass of yeast cultures. The addition of ethanol during log growth phase increases the yield of yeast biomass and products purified from the biomass.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Peter Lipke, Uthama Edupuganti
  • Patent number: 9648876
    Abstract: Xanthochymol and garcinol, isoprenylated benzophenones purified from Garcinia xanthochymus fruits, showed multiple activities against fungal biofilms. Both compounds effectively prevented emergence of fungal germ tubes and were also cytostatic, with MICs of 1 to 3 ?M. The compounds therefore inhibited development of hyphae and subsequent biofilm maturation. Xanthochymol treatment of developing and mature biofilms induced cell death. In early biofilm development, killing had the characteristics of apoptosis. These activities resulted in failure of biofilm maturation and hyphal death in mature biofilms. In mature biofilms, xanthochymol and garcinol caused the death of biofilm hyphae, with 50% effective concentrations (EC50s) of 30 to 50 ?M. Additionally, xanthochymol-mediated killing was complementary with fluconazole against mature biofilms, reducing the fluconazole EC50 from greater than 1,024 ?g per ml to 13 ?g per ml.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 16, 2017
    Assignee: Research Foundation of City University of New York
    Inventors: Desmond N. Jackson, Edward N. Kennelly, Peter Lipke
  • Publication number: 20160309711
    Abstract: Xanthochymol and garcinol, isoprenylated benzophenones purified from Garcinia xanthochymus fruits, showed multiple activities against fungal biofilms. Both compounds effectively prevented emergence of fungal germ tubes and were also cytostatic, with MICs of 1 to 3 ?M. The compounds therefore inhibited development of hyphae and subsequent biofilm maturation. Xanthochymol treatment of developing and mature biofilms induced cell death. In early biofilm development, killing had the characteristics of apoptosis. These activities resulted in failure of biofilm maturation and hyphal death in mature biofilms. In mature biofilms, xanthochymol and garcinol caused the death of biofilm hyphae, with 50% effective concentrations (EC50s) of 30 to 50 ?M. Additionally, xanthochymol-mediated killing was complementary with fluconazole against mature biofilms, reducing the fluconazole EC50 from greater than 1,024 ?g per ml to 13 ?g per ml.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 27, 2016
    Inventors: Desmond N. Jackson, Edward N. Kennelly, Peter Lipke
  • Publication number: 20160230141
    Abstract: The present invention relates to a process for enhancing the growth and increasing the biomass of yeast cultures. The addition of ethanol during log growth phase increases the yield of yeast biomass and products purified from the biomass.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 11, 2016
    Applicant: RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK
    Inventors: Peter Lipke, Uthama Edupaganti
  • Publication number: 20110045482
    Abstract: The present invention relates to an assay method that can be used for high-throughput detection of cell surface glycoproteins. Specifically, the secretion of a chimeric glycoprotein reporter signals disruption of GPI anchor-mediated attachment of the glycoprotein to the cell surface. This method provides a high signal-to-noise ratio and is particularly useful for screening compounds that affect GP1 anchor biosynthesis. The method of the present invention thus permits genome-wide screens for genes that are needed for GPI anchor-mediated attachment of a glycoprotein to the surface of a cell as well as chemical inhibitors of proteins that promote GP1 anchor-mediated attachment of a glycoprotein to the surface of a cell. Protein inhibitors identified by the present method could be useful in antifungal drug treatments as well.
    Type: Application
    Filed: February 10, 2009
    Publication date: February 24, 2011
    Applicant: RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK
    Inventors: Peter Lipke, Marlyn Gonzalez