Patents by Inventor Krishna Kalghatgi

Krishna Kalghatgi 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).

  • Patent number: 9156879
    Abstract: The present invention provides, in part, a chromatographic restricted access media comprising aminopropyl groups derivatized with polysuccinamide that is derivatized with 1-ethylpropylamine and denatured human serum albumin. Methods of purifying polypeptides and complexes thereof are also provided.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: October 13, 2015
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Lev Z. Vilenchik, Krishna Kalghatgi
  • Publication number: 20120214181
    Abstract: The present invention provides methods for identifying modulators of PCSK9, for example, using a variety of assay formats. Inhibitors of PCSK9 can be used for example, to treat diseases such as hyperlipidemia and related disorders.
    Type: Application
    Filed: May 8, 2012
    Publication date: August 23, 2012
    Inventors: Brian M. Beyer, Thomas Hesson, Hung V. Le, Andrew J. Prongay, Krishna Kalghatgi, Jennifer Joanne Gesell, Richard N. Ingram, Michael R. Ziebell
  • Patent number: 8206943
    Abstract: The present invention provides methods for identifying modulators of PCSK9, for example, using a variety of assay formats. Inhibitors of PCSK9 can be used for example, to treat diseases such as hyperlipidemia and related disorders.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: June 26, 2012
    Assignee: Schering Corporation
    Inventors: Brian M. Beyer, Thomas Hesson, Hung V. Le, Andrew J. Prongay, Krishna Kalghatgi, Jennifer Joanne Gesell, Richard N. Ingram, Michael R. Ziebell
  • Patent number: 7269519
    Abstract: The present invention provides a method for identifying a member of a mass-coded combinatorial library which is a ligand for biomolecule and assessing the effect of the binding of the ligand to the biomolecule. The mass-coded molecular library comprises compounds of the general formula XYn, wherein n is an integer from 2 to about 6, X is a scaffold and each Y is, independently, a peripheral moiety. The mass-coded combinatorial library is produced by reacting a scaffold precursor with a sufficient number of distant peripheral moiety precursors such that there exist at least about 250 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: September 11, 2007
    Assignee: Schering Corporation
    Inventors: Huw M. Nash, Seth Birnbaum, Edward A. Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal
  • Patent number: 7169563
    Abstract: Methods for identifying a member of a mass-coded molecular library, which is a ligand for a biomolecule and binds to the biomolecule at the binding site of a known second ligand for the biomolecule are described. The methods includes contacting a mass-coded molecular library with a biomolecule; separating the biomolecule-ligand complexes from the unbound members of the mass-coded molecular library; contacting the biomolecule-ligand complexes with a second ligand to dissociate biomolecule-ligand complexes in which the ligand binds to the biomolecule at the binding site of the second ligand, thereby forming biomolecule-second ligand complexes and dissociated ligands; separating the dissociated ligands and biomolecule-second ligand complexes; and determining the molecular mass of each dissociated ligand.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 30, 2007
    Assignee: Schering Corporation
    Inventors: Krishna Kalghatgi, Satish Jindal
  • Publication number: 20060063169
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Application
    Filed: February 18, 2005
    Publication date: March 23, 2006
    Inventors: Huw Nash, Seth Birnbaum, Edward Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal
  • Patent number: 6714875
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: March 30, 2004
    Assignee: Neogenesis Drug Discovery, Inc.
    Inventors: Huw M. Nash, Seth Birnbaum, Edward A. Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal
  • Patent number: 6694267
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: February 17, 2004
    Assignee: NeoGenesis Drug Discovery, Inc.
    Inventor: Krishna Kalghatgi
  • Publication number: 20040014137
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Application
    Filed: March 11, 2003
    Publication date: January 22, 2004
    Applicant: Neogenesis, Inc., a Delaware corporation
    Inventors: Huw M. Nash, Seth Birnbaum, Edward A. Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal
  • Publication number: 20030224409
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Application
    Filed: March 11, 2003
    Publication date: December 4, 2003
    Applicant: Neogenesis, Inc., a Delaware corporation
    Inventors: Huw M. Nash, Seth Birnbaum, Edward A. Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal
  • Publication number: 20030138788
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Application
    Filed: April 19, 2002
    Publication date: July 24, 2003
    Applicant: NeoGenesis Pharmaceuticals, Inc.
    Inventors: Krishna Kalghatgi, Satish Jindal
  • Publication number: 20020172970
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Application
    Filed: April 24, 2002
    Publication date: November 21, 2002
    Applicant: NeoGenesis Pharmaceuticals, Inc.
    Inventor: Krishna Kalghatgi
  • Publication number: 20020164617
    Abstract: The invention relates to methods based on affinity selection for the identification of ligands for hydrophobic proteins bound by amphiphile. The invention also provides hydrophobic proteins and methods of isolation of hydrophobic proteins that are suitable for ligand screening.
    Type: Application
    Filed: December 19, 2001
    Publication date: November 7, 2002
    Applicant: NeoGenesis Pharmaceuticals, Inc.
    Inventors: Jason S. Felsch, David Allen Annis, Krishna Kalghatgi, Huw M. Nash
  • Patent number: 6207861
    Abstract: The present invention provides a method for producing a mass-coded combinatorial library comprising a set of compounds having the general formula X(Y)n, where X is a scaffold, each Y is, independently, a peripheral moiety, and n is an integer greater than 1. The method comprises selecting a peripheral moiety precursor subset from a peripheral moiety precursor set. The subset includes a sufficient number of peripheral moiety precursors that at least about 50 distinct combinations of n peripheral moieties derived from the peripheral moiety precursors in the subset exist. The subset of peripheral moiety precursors is selected so that at least about 90% of all possible combinations of n peripheral moieties derived from the subset have a molecular mass sum which is distinct from the molecular mass sums of all of the other combinations of n peripheral moieties. The method further comprises contacting the peripheral moiety precursor subset with a scaffold precursor which has n reactive groups.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 27, 2001
    Assignee: NeoGenesis, Inc.
    Inventors: Huw M. Nash, Seth Birnbaum, Edward A. Wintner, Krishna Kalghatgi, Gerald Shipps, Satish Jindal