Patents by Inventor Amar Gupta

Amar Gupta 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: 20100093041
    Abstract: An improved method of preventing carryover contamination of an amplification reaction involves treating uracil-containing DNA with uracil-N-DNA glycosylase and heating the DNA in the presence of polyamines, such as spermidine, spermine and the like. Alternatively, after treatment with uracil-N-DNA glycosylase, the reaction is further incubated with an enzyme having AP lyase activity.
    Type: Application
    Filed: June 16, 2009
    Publication date: April 15, 2010
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Amar Gupta, Stephen Gordon Will, Roy Bohenzky, Janine Montiel
  • Patent number: 7572581
    Abstract: The present invention provides methods of extending primer nucleic acids and sequencing target nucleic acids. The methods include the use of 2?-terminator nucleotides to effect chain termination. In addition to related reaction mixtures and kits, the invention also provides computers and computer readable media.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 11, 2009
    Assignee: Roche Molecular Systems, Inc.
    Inventors: David Harrow Gelfand, Fred Lawrence Reichert, Veeraiah Bodepudi, Amar Gupta, Stephen Will, Thomas Myers
  • Publication number: 20090142810
    Abstract: The present invention provides methods of extending primer nucleic acids and sequencing target nucleic acids. The methods include the use of 2?-terminator nucleotides to effect chain termination. In addition to related reaction mixtures and kits, the invention also provides computers and computer readable media.
    Type: Application
    Filed: July 16, 2008
    Publication date: June 4, 2009
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: David Harrow Gelfand, Fred Lawrence Reichert, Veeraiah Bodepudi, Amar Gupta, Stephen Will, Thomas W. Myers
  • Patent number: 7501504
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 10, 2009
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen Gordon Will
  • Publication number: 20080293071
    Abstract: The invention provides a method of determining the nucleotide sequence of a target nucleic acid using a reversibly terminating nucleotide that is modified at the 2? position.
    Type: Application
    Filed: December 20, 2006
    Publication date: November 27, 2008
    Applicant: ROCHE MOLECULAR SYSTEMS, INC
    Inventors: David H. Gelfand, Amar Gupta
  • Patent number: 7456266
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 25, 2008
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen Gordon Will
  • Patent number: 7452674
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 18, 2008
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen G. Will
  • Publication number: 20080268441
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Veeraiah Bodepudi, Amar GUPTA, Stephen G. Will
  • Publication number: 20080161548
    Abstract: The present invention provides methods of extending nucleic acids and purifying target nucleic acids. The methods include the use of capping reagents to effect chain termination and provide a handle for purification via fluorous affinity methods.
    Type: Application
    Filed: December 18, 2007
    Publication date: July 3, 2008
    Applicant: Roche Molecular Systems, Inc.
    Inventors: Amar GUPTA, Stephen Will
  • Patent number: 7392424
    Abstract: A router and routing protocol redundancy are disclosed to reduce service outage or degradation for a network device and thus to increase service availability on a network due to software and hardware failures of the network device. A network device such as router includes a redundancy platform having an active controller system and a standby controller system. A routing protocol state change is received or generated by the active controller system. The received or generated routing protocol state change is replicated to the standby controller system. By replicating the routing protocol state change, the standby controller system can maintain the routing protocol sessions for the network device if a failure occurs in the active controller system. Furthermore, the routing protocol states are maintained in realtime to handle the dynamic changes created by routing protocols.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: June 24, 2008
    Assignee: Nokia Inc.
    Inventors: Chi Fai Ho, Amar Gupta, Madhu Grandhi, Alex Bachmutsky
  • Publication number: 20070219361
    Abstract: The invention provides methods of producing blocked oligonucleotides that include 2?-terminator nucleotides. These blocked oligonucleotides are used primers and probes in a variety of nucleic acid technologies. Related kits are also provided.
    Type: Application
    Filed: October 18, 2006
    Publication date: September 20, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen Will
  • Publication number: 20070208169
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Application
    Filed: April 30, 2007
    Publication date: September 6, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen Will
  • Publication number: 20070202576
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Application
    Filed: April 30, 2007
    Publication date: August 30, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen Will
  • Publication number: 20070154914
    Abstract: The present invention provides reaction mixtures that include blocked oligonucleotides comprising 2?-terminator nucleotides. The blocked oligonucleotides are rendered extendible when the 2?-terminator nucleotides are removed from the oligonucleotides, e.g., via pyrophosphorolysis. The reaction mixtures can be used in various nucleic acid polymerization and/or amplification assays, among many other applications. In addition to reaction mixtures, the invention also provides related methods and reaction mixtures.
    Type: Application
    Filed: October 18, 2006
    Publication date: July 5, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: David Gelfand, Keith Bauer, Amar Gupta, Veeraiah Bodepudi, John Niemiec
  • Publication number: 20070141560
    Abstract: This invention provides compositions and methods for HCV typing, e.g., genotyping and/or subtyping. The compositions and methods of the invention can be used to assign an HCV isolate to one of at least five HCV types (for example, selected from types 1, 2, 3, 4, 5 or 6), or to one of at least five subtypes (for example, subtypes 1a/b/c, 2a/c, 2b, 3a, 4a, 5a or 6a). These methods integrate the hybridization data from a plurality of HCV typing probes in a multidimensional analysis to make an HCV type assignment for an HCV in an experimental sample. The invention also provides related compositions, including, for example, the HCV typing probes and HCV typing diagnostic kits.
    Type: Application
    Filed: June 23, 2006
    Publication date: June 21, 2007
    Inventors: Amar Gupta, Stephen Will
  • Patent number: 7220847
    Abstract: The invention relates to detectable labels useful for detection of nucleotide sequences. Specifically, the invention relates to labeled-imidazole-PEG compounds, such as nucleosides, nucleotides, and nucleic acids incorporating such compounds, and methods utilizing such compounds. The invention further relates to kits comprising labeled imidazole-PEG compounds.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 22, 2007
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Veeraiah Bodepudi, Amar Gupta, Stephen G. Will
  • Publication number: 20070031870
    Abstract: The present invention provides methods and probe nucleic acids for detecting mutant forms of target nucleic acids that comprise repetitive nucleotide sequences. In certain embodiments, for example, these approaches and reagents can be used to detect instability in regions of genomic DNA that include microsatellite markers. The invention also provides related reaction mixtures, systems, and kits.
    Type: Application
    Filed: July 13, 2006
    Publication date: February 8, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Christopher Newhouse, Stephen Will, Amar Gupta
  • Publication number: 20070020665
    Abstract: This invention provides compositions and methods for HCV typing, e.g., genotyping and/or subtyping. The compositions and methods of the invention can be used to assign an HCV isolate to one of at least five HCV genotypes (for example, selected from genotypes 1, 2, 3, 4, 5 or 6), or assign an HCV isolate to one of at least six subtypes (for example, selected from subtypes 1a/b/c, 2a/c, 2b, 3a, 4a, 5a or 6a), where the methods of the invention use only a single typing probe to make the HCV type assignment.
    Type: Application
    Filed: June 23, 2006
    Publication date: January 25, 2007
    Applicant: Roche Molecular Systems
    Inventors: Amar Gupta, Stephen Will
  • Publication number: 20070020664
    Abstract: The present invention relates to methods and reagents for modifying the emission of light from labeled nucleic acids for the purpose of real time detection, analysis, and quantitation of nucleic acid sequences, e.g., using singly labeled probes. These methods and reagents exploit advantageous properties of thiazine dyes and diazine dyes. Furthermore, the use of these light emission modifiers in background reduction, nucleic acid duplex stabilization and other uses is also described. Related kits, reaction mixtures and integrated systems are described.
    Type: Application
    Filed: June 23, 2006
    Publication date: January 25, 2007
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Amar Gupta, Stephen Will
  • Publication number: 20050265346
    Abstract: A router and routing protocol redundancy are disclosed to reduce service outage or degradation for a network device and thus to increase service availability on a network due to software and hardware failures of the network device. A network device such as router includes a redundancy platform having an active controller system and a standby controller system. A routing protocol state change is received or generated by the active controller system. The received or generated routing protocol state change is replicated to the standby controller system. By replicating the routing protocol state change, the standby controller system can maintain the routing protocol sessions for the network device if a failure occurs in the active controller system. Furthermore, the routing protocol states are maintained in realtime to handle the dynamic changes created by routing protocols.
    Type: Application
    Filed: May 9, 2005
    Publication date: December 1, 2005
    Inventors: Chi Ho, Amar Gupta, Madhu Grandhi, Alex Bachmutsky