Patents by Inventor Rangarajan Sampath

Rangarajan Sampath 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: 20120171679
    Abstract: The present invention provides methods for rapid forensic investigations by identification of bioagents associated with biowarfare and acts of terrorism or crime. The methods are also useful for epidemiological investigations by genotyping of bioagents.
    Type: Application
    Filed: October 31, 2007
    Publication date: July 5, 2012
    Applicant: Ibis Biosciences, Inc.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke, James C. Hannis
  • Patent number: 8214154
    Abstract: “The present invention provides systems for: identifying pathogens in biological samples from humans and animals, resolving a plurality of etiologic agents present in samples obtained from humans and animals, determining detailed genetic information about such pathogens or etiologic agents, and rapid detection and identification of bioagents from environmental, clinical or other samples.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: July 3, 2012
    Assignee: Ibis Biosciences, Inc.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke
  • Publication number: 20120164625
    Abstract: The present invention provides methods of: identifying pathogens in biological samples from humans and animals, resolving a plurality of etiologic agents present in samples obtained from humans and animals, determining detailed genetic information about such pathogens or etiologic agents, and rapid detection and identification of bioagents from environmental, clinical or other samples.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 28, 2012
    Applicant: IBIS BIOSCIENCES, INC.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke, Lawrence Blyn, Ray Ranken, Thomas A. Hall
  • Publication number: 20120142085
    Abstract: The present invention provides methods of: identifying pathogens in biological samples from humans and animals, resolving a plurality of etiologic agents present in samples obtained from humans and animals, determining detailed genetic information about such pathogens or etiologic agents, and rapid detection and identification of bioagents from environmental, clinical or other samples.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 7, 2012
    Applicant: Ibis Biosciences, Inc.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke
  • Patent number: 8187814
    Abstract: The present invention provides methods for the quantification of an unknown bioagent in a sample by amplification of nucleic acid of the bioagent, and concurrent amplification of a known quantity of a calibration polynucleotide from which are obtained a bioagent identifying amplicon and a calibration amplicon. Upon molecular mass analysis, mass and abundance data are obtained. The identity of the bioagent is then determined from the molecular mass of the bioagent identifying amplicon and the quantity of the identified bioagent in the sample is determined from the abundance data of the bioagent identifying amplicon and the abundance data of the calibration amplicon.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: May 29, 2012
    Assignee: Ibis Biosciences, Inc.
    Inventors: David J. Ecker, Rangarajan Sampath, Lawrence B. Blyn, Steven A. Hofstadler, Thomas A. Hall
  • Patent number: 8182992
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of adventitious contaminant viruses by molecular mass and base composition analysis.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: May 22, 2012
    Assignee: Ibis Biosciences, Inc.
    Inventor: Rangarajan Sampath
  • Publication number: 20120122101
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122098
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122096
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122099
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122103
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122102
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120122097
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120123685
    Abstract: The present invention relates generally to the field of investigational bioinformatics and more particularly to secondary structure defining databases. The present invention further relates to methods for interrogating a database as a source of molecular masses of known bioagents for comparing against the molecular mass of an unknown or selected bioagent to determine either the identity of the selected bioagent, and/or to determine the origin of the selected bioagent. The identification of the bioagent is important for determining a proper course of treatment and/or irradication of the bioagent in such cases as biological warfare. Furthermore, the determination of the geographic origin of a selected bioagent will facilitate the identification of potential criminal identity.
    Type: Application
    Filed: February 13, 2007
    Publication date: May 17, 2012
    Applicant: Isis Pharmaceuticals, Inc.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke
  • Publication number: 20120122086
    Abstract: The present invention provides methods for rapid forensic investigations by identification of bioagents associated with biowarfare and acts of terrorism or crime. The methods are also useful for epidemiological investigations by genotyping of bioagents.
    Type: Application
    Filed: March 5, 2007
    Publication date: May 17, 2012
    Applicant: Isis Pharmaceuticals, Inc.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke, James C. Hannis
  • Publication number: 20120122100
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of bacteria by molecular mass and base composition analysis.
    Type: Application
    Filed: March 7, 2007
    Publication date: May 17, 2012
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Lawrence Blyn
  • Publication number: 20120107795
    Abstract: The present invention provides methods for the quantification of an unknown bioagent in a sample by amplification of nucleic acid of the bioagent, and concurrent amplification of a known quantity of a calibration polynucleotide from which are obtained a bioagent identifying amplicon and a calibration amplicon. Upon molecular mass analysis, mass and abundance data are obtained. The identity of the bioagent is then determined from the molecular mass of the bioagent identifying amplicon and the quantity of the identified bioagent in the sample is determined from the abundance data of the bioagent identifying amplicon and the abundance data of the calibration amplicon.
    Type: Application
    Filed: January 8, 2010
    Publication date: May 3, 2012
    Applicant: Ibis Biosciences, Inc.
    Inventors: David J. Ecker, Rangarajan Sampath, Lawrence B. Blyn, Steven A. Hofstadler, Thomas A. Hall
  • Publication number: 20120100543
    Abstract: The present invention provides compositions, kits and methods for rapid identification and quantification of fungi by molecular mass and base composition analysis.
    Type: Application
    Filed: January 3, 2012
    Publication date: April 26, 2012
    Applicant: IBIS BIOSCIENCES, INC.
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker
  • Patent number: 8163895
    Abstract: Oligonucleotide primers and compositions and kits containing the same for rapid identification of orthopoxviruses by amplification of a segment of viral nucleic acid followed by molecular mass analysis are provided.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: April 24, 2012
    Assignee: Ibis Biosciences, Inc.
    Inventors: Rangarajan Sampath, Thomas A. Hall, David J. Ecker, Steven A. Hofstadler
  • Publication number: 20120095696
    Abstract: Rapid and definitive bioagent detection and identification can be carried out without nucleic acid sequencing. Analysis of a variety of bioagents and samples, such as air, fluid, and body samples, can be carried out to provide information useful for industrial, medical, and environmental purposes. Nucleic acid samples of unknown or suspected bioagents may be collected, optimal primer pairs may be selected, and the nucleic acid may be amplified. Expected mass spectra signal models may be generated and selected, the actual mass spectra of the amplicons may be obtained. The expected mass spectra most closely correlating with the actual mass spectra may be determined using a joint maximum likelihood analysis, and base counts for the actual mass spectra and the expected mass spectra may be obtained. The most likely candidate bioagents may then be determined.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 19, 2012
    Applicant: IBIS BIOSCIENCES, INC.
    Inventors: David J. Ecker, Richard H. Griffey, Rangarajan Sampath, Steven A. Hofstadler, John McNeil, Stanley T. Crooke, Dino J. Sofianos, Karl H. Rudnick, Duane J. Knize, Roland B. Stoughton, Cecil L. Basham, JR., Clifford T. Lewis, Brons M. Larson, Jonathan R. Bar-on, Dennis P. Murray, David W. Robbins, John P. Penhune