Patents by Inventor Anuradha Sekher

Anuradha Sekher 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: 11268116
    Abstract: Disclosed are methods and kits for endonuclease-assisted DNA amplification reaction using decontaminated primer solutions that are pre-treated with a nuclease. Nucleic acid amplification assays that employ nuclease-resistant, inosine-containing primers, endonuclease V enzymes to introduce a nick into a target DNA comprising at least one inosine, and a DNA polymerase to generate amplicons of a target DNA are also disclosed.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 8, 2022
    Assignee: GLOBAL LIFE SCIENCES SOLUTIONS OPERATIONS UK LTD
    Inventors: Robert Scott Duthie, John Richard Nelson, Anuradha Sekher
  • Patent number: 10704042
    Abstract: Methods of amplification, purification and detection of nucleic acid sequences especially RNA are described. One aspect of the method involves the hybridisation and subsequent ligation of a nucleic acid structure to the nucleic acid sequence desired to be manipulated. The methods require that the nucleic acid structure comprises a double stranded region and a single stranded region. The single stranded region is complementary to the RNA sequence of interest. The double stranded region may also contain additional functionalities which are then used subsequently in the method.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 7, 2020
    Assignee: GE HEALTHCARE BIO-SCIENCES CORP.
    Inventors: John R. Nelson, R. Scott Duthie, Rohini Dhulipala, Gregory A. Grossman, Anuradha Sekher
  • Publication number: 20190062795
    Abstract: Disclosed are methods and kits for endonuclease-assisted DNA amplification reaction using decontaminated primer solutions that are pre-treated with a nuclease. Nucleic acid amplification assays that employ nuclease-resistant, inosine-containing primers, endonuclease V enzymes to introduce a nick into a target DNA comprising at least one inosine, and a DNA polymerase to generate amplicons of a target DNA are also disclosed.
    Type: Application
    Filed: March 30, 2018
    Publication date: February 28, 2019
    Inventors: Robert Scott Duthie, John Richard Nelson, Anuradha Sekher
  • Publication number: 20180320172
    Abstract: Methods of amplification, purification and detection of nucleic acid sequences especially RNA are described. One aspect of the method involves the hybridisation and subsequent ligation of a nucleic acid structure to the nucleic acid sequence desired to be manipulated. The methods require that the nucleic acid structure comprises a double stranded region and a single stranded region. The single stranded region is complementary to the RNA sequence of interest. The double stranded region may also contain additional functionalities which are then used subsequently in the method.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 8, 2018
    Inventors: John R. Nelson, R. Scott Duthie, Rohini Dhulipala, Gregory A. Grossman, Anuradha Sekher
  • Patent number: 10100292
    Abstract: Provided herein are mutant endonuclease V enzymes that are capable of nicking an inosine-containing DNA sequence. Nucleic acid assays and agents that employ such mutant endonuclease V enzymes to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of a target DNA are also described.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: John Richard Nelson, Robert Scott Duthie, Gregory Andrew Grossman, Anuradha Sekher
  • Patent number: 9951379
    Abstract: Provided herein are nucleic acid synthesis methods and agents that employ an endonuclease for example, endonuclease V, to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of the target DNA.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 24, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Richard Nelson, Robert Scott Duthie, Carl Williams Fuller, Gregory Andrew Grossmann, Anuradha Sekher
  • Publication number: 20160160198
    Abstract: Provided herein are mutant endonuclease V enzymes that are capable of nicking an inosine-containing DNA sequence. Nucleic acid assays and agents that employ such mutant endonuclease V enzymes to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of a target DNA are also described.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 9, 2016
    Inventors: John Richard Nelson, Robert Scott Duthie, Gregory Andrew Grossman, Anuradha Sekher
  • Patent number: 9279150
    Abstract: Provided herein are mutant endonuclease V enzymes that are capable of nicking an inosine-containing DNA sequence. Nucleic acid assays and agents that employ such mutant endonuclease V enzymes to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of a target DNA are also described.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 8, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Richard Nelson, Robert Scott Duthie, Gregory Andrew Grossman, Anuradha Sekher
  • Publication number: 20130323795
    Abstract: Disclosed are methods and kits for endonuclease-assisted DNA amplification reaction using decontaminated primer solutions that are pre-treated with a nuclease. Nucleic acid amplification assays that employ nuclease-resistant, inosine-containing primers, endonuclease V enzymes to introduce a nick into a target DNA comprising at least one inosine, and a DNA polymerase to generate amplicons of a target DNA are also disclosed.
    Type: Application
    Filed: August 13, 2013
    Publication date: December 5, 2013
    Applicant: General Electric Company
    Inventors: Robert Scott Duthie, John Richard Nelson, Anuradha Sekher
  • Publication number: 20120196330
    Abstract: Provided herein are nucleic acid synthesis methods and agents that employ an endonuclease for example, endonuclease V, to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of the target DNA.
    Type: Application
    Filed: December 20, 2011
    Publication date: August 2, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Richard Nelson, Robert Scott Duthie, Carl Williams Fuller, Gregory Andrew Grossmann, Anuradha Sekher
  • Patent number: 8202972
    Abstract: Provided herein are nucleic acid synthesis methods and agents that employ an endonuclease for example, endonuclease V, to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of the target DNA.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: June 19, 2012
    Assignee: General Electric Company
    Inventors: John Richard Nelson, Robert Scott Duthie, Carl Williams Fuller, Gregory Andrew Grossmann, Anuradha Sekher
  • Patent number: 7892797
    Abstract: The present invention provides methods, formulation and kits for the synthesis of long nucleic acid fragments. An improved PCR method is provided for amplifying long DNA fragments. In particular, a single thermostable DNA polymerase is used for the rapid amplification of over 10 kb long DNA fragments. Also provided is a method for extending long complementary DNA strands using this single enzyme formulation.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: February 22, 2011
    Assignee: GE Healthcare Bio-Sciences Corp.
    Inventors: Paul Mitsis, Anuradha Sekher, Gyanendra Kumar
  • Publication number: 20090170167
    Abstract: The present invention provides methods, formulation and kits for the synthesis of long nucleic acid fragments. An improved PCR method is provided for amplifying long DNA fragments. In particular, a single thermostable DNA polymerase is used for the rapid amplification of over 10 kb long DNA fragments. Also provided is a method for extending long complementary DNA strands using this single enzyme formulation.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 2, 2009
    Applicant: GE HEALTHCARE BIO-SCIENCES CORP.
    Inventors: PAUL MITSIS, ANURADHA SEKHER, GYANENDRA KUMAR
  • Publication number: 20090011472
    Abstract: Provided herein are nucleic acid synthesis methods and agents that employ an endonuclease for example, endonuclease V, to introduce a nick into a target DNA including one or more inosine, and uses a DNA polymerase to generate amplicons of the target DNA.
    Type: Application
    Filed: January 10, 2007
    Publication date: January 8, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: JOHN RICHARD NELSON, ROBERT SCOTT DUTHIE, CARL WILLIAMS FULLER, GREGORY ANDREW GROSSMANN, ANURADHA SEKHER
  • Publication number: 20080003602
    Abstract: Methods of amplification, purification and detection of nucleic acid sequences especially RNA are described. One aspect of the method involves the hybridisation and subsequent ligation of a nucleic acid structure to the nucleic acid sequence desired to be manipulated. The methods require that the nucleic acid structure comprises a double stranded region and a single stranded region. The single stranded region is complementary to the RNA sequence of interest. The double stranded region may also contain additional functionalities which are then used subsequently in the method.
    Type: Application
    Filed: December 22, 2005
    Publication date: January 3, 2008
    Applicant: GE HEALTHCARE BIO-SCIENCES CORP.
    Inventors: John Nelson, R. Duthie, Rohini Dhulipala, Gregory Grossmann, Anuradha Sekher
  • Patent number: 7125671
    Abstract: The present invention relates generally to the use of terminal-phosphate-labeled nucleotides having three or more phosphates as substrates for nucleic acid polymerases and their use in DNA amplification. The labels employed are chemiluminescent, fluorescent, electrochemical and chromogenic moieties as well as mass tags and include those that are directly detectable, detectable after enzyme activation or feed into other processes to generate a different signal. The signal generated from the attached dyes may also be used to quantify the amount of amplification. Further provided are stabilizers that enhance the stability of terminal-phosphate labeled nucleoside polyphosphates in aqueous solutions and are useful for reducing non-enzymatic hydrolysis of these nucleotides, hence decrease background.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 24, 2006
    Assignee: GE Healthcare Bio-Sciences Corp.
    Inventors: Anup Sood, Shiv Kumar, John Nelson, Carl Fuller, Anuradha Sekher
  • Publication number: 20040152104
    Abstract: The present invention relates generally to the use of terminal-phosphate-labeled nucleotides having three or more phosphates as substrates for nucleic acid polymerases and their use in DNA amplification. The labels employed are chemiluminescent, fluorescent, electrochemical and chromogenic moieties as well as mass tags and include those that are directly detectable, detectable after enzyme activation or feed into other processes to generate a different signal. The signal generated from the attached dyes may also be used to quantify the amount of amplification. Further provided are stabilizers that enhance the stability of terminal-phosphate labeled nucleoside polyphosphates in aqueous solutions and are useful for reducing non-enzymatic hydrolysis of these nucleotides, hence decrease background.
    Type: Application
    Filed: August 29, 2003
    Publication date: August 5, 2004
    Inventors: Anup Sood, Shiv Kumar, John Nelson, Carl Fuller, Anuradha Sekher