Patents by Inventor John S. Kovach

John S. Kovach 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: 20120264764
    Abstract: This invention provides compounds having the structure which may be used for the treatment of tumors.
    Type: Application
    Filed: June 11, 2012
    Publication date: October 18, 2012
    Inventors: John S. Kovach, Francis Johnson
  • Patent number: 8227473
    Abstract: This invention provides compounds having the structure which may be used for the treatment of tumors.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 24, 2012
    Assignee: Lixte Biotechnology, Inc.
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20120178783
    Abstract: This invention provides the compound having the structure wherein n is 1-10; X is C—R11 or N; wherein R11 is H, OH, SH, F, Cl, SO2R7, NO2, trifluoromethyl, methoxy, or CO—R7, wherein R7 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl; Z is R2 is H or NR3R4, wherein R3 and R4 are each independently H, C1-C6 alkyl, or C3-C8 cycloalkyl; R5 is OH or SH; and R6, R12, R13, and R14 are each independently H, OH, SH, F, Cl, SO2R15, NO2, trifluoromethyl, methoxy, or CO—R15, wherein R15 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl, or a salt of the compound, which is useful in the treatment of tumors.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20120135522
    Abstract: Disclosed herein are methods of inhibiting the function of p53 in a cell by contacting the cell with an effective amount of a PP2A inhibitor. Also disclosed herein are processes for producing an induced pluripotent stem (iPS) cell by contacting a somatic cell expressing at least one gene that encodes a reprogramming factor with an amount of a PP2A inhibitor effective to produce the iPS cell; reversibly inhibiting p53 function during production of an iPS cell by contacting a somatic cell with an amount of a PP2A inhibitor effective to reversibly inhibit p53 function; increasing the likelihood of producing an (iPS) cell.
    Type: Application
    Filed: February 1, 2010
    Publication date: May 31, 2012
    Inventor: John S. Kovach
  • Patent number: 8143445
    Abstract: This invention provides the compound having the structure wherein n is 1-10; X is C—R11 or N, wherein R11 is H, OH, SH, F, Cl, SO2R7, NO2, trifluoromethyl, methoxy, or CO—R7, wherein R7 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl; Z is R2 is H or NR3R4, wherein R3 and R4 are each independently H, C1-C6 alkyl, or C3-C8 cycloalkyl; R5 is OH or SH; and R6, R12, R13, and R14 are each independently H, OH, SH, F, Cl, SO2R15, NO2, trifluoromethyl, methoxy, or CO—R15 wherein R15 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl, or a salt of the compound, which is useful in the treatment of tumors.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: March 27, 2012
    Assignee: Lixte Biotechnology, Inc.
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20110287537
    Abstract: Disclosed herein are methods of treating neurodegenerative diseases comprising administering to the subject a compound having the structure: wherein ? and R1-R8 are described herein, or a compound having the structure: wherein Y, Z, and R21, R24, R25, and R31-R33 are described herein.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 24, 2011
    Inventor: John S. Kovach
  • Patent number: 8058268
    Abstract: Disclosed herein are methods of treating neurodegenerative diseases comprising administering to the subject a compound having the structure: wherein ? and R1-R8 are described herein, or a compound having the structure: wherein Y, Z, and R21, R24, R25, and R31-R33 are described herein.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 15, 2011
    Assignee: Lixte Biotechnology, Inc.
    Inventor: John S. Kovach
  • Patent number: 7998957
    Abstract: This invention provides compounds having the structure which may be used for the treatment of tumors.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: August 16, 2011
    Assignee: Lixte Biotechnology, Inc.
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20100029484
    Abstract: This invention provides compounds having the structure which may be used for the treatment of tumors.
    Type: Application
    Filed: July 17, 2009
    Publication date: February 4, 2010
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20100029640
    Abstract: Disclosed herein are methods of treating neurodegenerative diseases comprising administering to the subject a compound having the structure: wherein ? and R1-R8 are described herein, or a compound having the structure: wherein Y, Z, and R21, R24, R25, and R31-R33 are described herein.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Inventor: John S. Kovach
  • Publication number: 20100029683
    Abstract: Disclosed herein are methods of inhibiting proliferation of a cancer cell or inducing apoptosis of a cancer cell, which does not overexpress N—CoR. Also disclosed herein are methods of inhibiting proliferation or inducing apoptosis of a cancer cell that overexpresses TCTP and methods for determining whether a compound is effective in inducing cell death.
    Type: Application
    Filed: July 17, 2009
    Publication date: February 4, 2010
    Inventors: John S. Kovach, Zhengping Zhuang, Jie Lu
  • Publication number: 20090143445
    Abstract: This invention provides the compound having the structure wherein n is 1-10; X is C—R11 or N, wherein R11 is H, OH, SH, F, Cl, SO2R7, NO2, trifluoromethyl, methoxy, or CO—R7, wherein R7 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl; Z is R2 is H or NR3R4, wherein R3 and R4 are each independently H, C1-C6 alkyl, or C3-C8 cycloalkyl; R5 is OH or SH; and R6, R12, R13, and R14 are each independently H, OH, SH, F, Cl, SO2R15, NO2, trifluoromethyl, methoxy, or CO—R15 wherein R15 is alkyl, alkenyl, alkynyl, C3-C8 cycloalkyl, or aryl, or a salt of the compound, which is useful in the treatment of tumors.
    Type: Application
    Filed: October 1, 2008
    Publication date: June 4, 2009
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20090035292
    Abstract: Disclosed herein are methods of treating neuroblastomas and medulloblastomas in a subject comprising administering to the subject a phosphatase ligand in an amount effective to treat the subject. Also disclosed herein are method of treating neuroblastomas and medulloblastomas in a subject comprising administering to the subject a histone deacteylase ligand in an amount effective to treat the subject.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventors: John S. Kovach, Zhengping Zhuang
  • Publication number: 20090036309
    Abstract: This invention provides compounds having the structure which may be used for the treatment of tumors.
    Type: Application
    Filed: February 6, 2008
    Publication date: February 5, 2009
    Inventors: John S. Kovach, Francis Johnson
  • Publication number: 20090018142
    Abstract: This invention provides a method of treating a patient suffering from a tumor overexpressing N—CoR comprising administering to the patient a phosphatase ligand, alone or in combination with a retinoid receptor ligand, a histone deacetylase ligand, or both, in amounts effective to treat the patient. This invention also provides a method of inhibiting tumor growth in a patient suffering from a tumor overexpressing N—CoR. This invention further provides a method of identifying a compound or a mixture of compounds capable of inducing differentiation of cells of a tumor overexpressing N—CoR. This invention still further provides a method of determining the likelihood of successfully treating a subject suffering from a tumor overexpressing N—CoR. This invention also provides a method of assessing the likelihood that a patient is suffering from a tumor overexpressing N—CoR.
    Type: Application
    Filed: February 6, 2007
    Publication date: January 15, 2009
    Inventors: Zhengping Zhuang, Edward H. Oldfield, Deric M. Park, Irina Lubensky, Jie Li, John S. Kovach
  • Publication number: 20080214569
    Abstract: This invention provides a method of treating a patient suffering from a tumor overexpressing N—CoR comprising administering to the patient a phosphatase ligand, alone or in combination with a retinoid receptor ligand, a histone deacetylase ligand, or both, in amounts effective to treat the patient. This invention also provides a method of inhibiting tumor growth in a patient suffering from a tumor overexpressing N—CoR. This invention further provides a method of identifying a compound or a mixture of compounds capable of inducing differentiation of cells of a tumor overexpressing N—CoR. This invention still further provides a method of determining the likelihood of successfully treating a subject suffering from a tumor overexpressing N—CoR. This invention also provides a method of assessing the likelihood that a patient is suffering from a tumor overexpressing N—CoR.
    Type: Application
    Filed: February 8, 2007
    Publication date: September 4, 2008
    Inventors: Zhengping Zhuang, Edward H. Oldfield, Deric M. Park, Irina Lubensky, Jie Li, John S. Kovach
  • Publication number: 20020177769
    Abstract: A magnetic body scanning method and apparatus for scanning the entire body for a magnetic signature of a cluster of ferromagnetic nanoparticles in relation to the diamagnetic signature of the body.
    Type: Application
    Filed: April 23, 2002
    Publication date: November 28, 2002
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Raymond L. Orbach, John S. Kovach, Gregory G. Kenning
  • Patent number: 6406429
    Abstract: Apparatus and method for early detection of cystic structures indicative of ovarian and breast cancers uses ultrasonic wave energy at a unique resonance frequency for inducing cavitation in cystic fluid characteristic of cystic structures in the ovaries associated with ovarian cancer, and in cystic structures in the breast associated with breast cancer. Induced cavitation bubbles in the cystic fluid implode, creating implosion waves which are detected by ultrasonic receiving transducers attached to the abdomen of the patient. Triangulation of the ultrasonic receiving transducers enables the received signals to be processed and analyzed to identify the location and structure of the cyst.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: June 18, 2002
    Assignees: City of Hope, California Institute of Technology
    Inventors: Yoseph Bar-Cohen, John S. Kovach
  • Patent number: 5004593
    Abstract: A method is provided for reducing the side effects of chemotherapy with hexamethylmelamine (HMM) comprising intravelously administering a stabilized solution of HMM in an aqueous lipid dispersion, so that the central nervous system toxicity associated with oral HMM administration is reduced or eliminated.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: April 2, 1991
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Matthew M. Ames, John S. Kovach