Patents by Inventor Rochak Mehta

Rochak Mehta 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: 20240102110
    Abstract: Methods for the rapid detection of the presence or absence of Malaria parasites (including Plasmodium) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Additionally, the assay can be a multiplex assay, to amplify and detect a plurality of Plasmodium targets simultaneously, which offers advantages over singleplex assays. Furthermore, oligonucleotide primers and oligonucleotide probes targeting Malaria parasites (including Plasmodium) and kits are provided that are designed for the detection of Plasmodium, including, but not limited to, the Plasmodium species of P. falciparum, P. vivax, P. ovale, P. knowlesi, and P. malariae. Also described are kits, reaction mixtures, and oligonucleotides (e.g., primer and probe) for the amplification and detection of Malaria parasites (including Plasmodium).
    Type: Application
    Filed: December 3, 2021
    Publication date: March 28, 2024
    Inventors: Sharon Ho-Chen Chiu, Yvonne Gicheru, Marintha Heil, Michael K. Lee, Chitra Manohar, Rochak Mehta, Ellen Ordinario, Jaya Rajamani, Jingtao Sun
  • Patent number: 11773458
    Abstract: Methods for the rapid detection of the presence or absence of BK virus in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting BK virus and kits are provided that are designed for the detection of BK virus.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: October 3, 2023
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Rochak Mehta, Jingtao Sun
  • Publication number: 20220364140
    Abstract: The present invention relates to compositions and methods for the use of polymerase chain reaction (PCR) as a reporter assay for rapid and simultaneous bacterial identification and phenotype testing for antimicrobial susceptibility (AST). The current invention uses a strategy that has shown the ability for multiplexing and for handling polymicrobial samples for antimicrobial susceptibility testing.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 17, 2022
    Inventors: Kyle C. Cady, Brett Hanson, Paulino Abdon, Ryan Chan, Patrick Lin, Rochak Mehta, Troy Rabang
  • Patent number: 11441167
    Abstract: The present invention relates to compositions and methods for the use of polymerase chain reaction (PCR) as a reporter assay for rapid and simultaneous bacterial identification and phenotype testing for antimicrobial susceptibility (AST). The current invention uses a strategy that has shown the ability for multiplexing and for handling polymicrobial samples for antimicrobial susceptibility testing.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: September 13, 2022
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Kyle C. Cady, Brett Hanson, Paulino Abdon, Ryan Chan, Patrick Lin, Rochak Mehta, Troy Rabang
  • Publication number: 20210147898
    Abstract: The present invention relates to compositions and methods for the use of polymerase chain reaction (PCR) as a reporter assay for rapid and simultaneous bacterial identification and phenotype testing for antimicrobial susceptibility (AST). The current invention uses a strategy that has shown the ability for multiplexing and for handling polymicrobial samples for antimicrobial susceptibility testing.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 20, 2021
    Inventors: Kyle C. Cady, Brett Hanson, Paulino Abdon, Ryan Chan, Patrick Lin, Rochak Mehta, Troy Rabang
  • Patent number: 11008626
    Abstract: Methods for the rapid detection of the presence or absence of Mycobacterium tuberculosis (MTB) resistant to rifampicin (MTB-RIF) and/or MTB resistant to isoniazid (MTB-INH) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers, probes targeting the genes for rpoB, inhA, and katG, along with kits are provided that are designed for the detection of MTB-RIF and/or MTB-INH.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 18, 2021
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Jenny A. Johnson, Rochak Mehta, Andy Yuen
  • Publication number: 20200392591
    Abstract: Methods for the rapid detection of the presence or absence of BK virus in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting BK virus and kits are provided that are designed for the detection of BK virus.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Inventors: Rochak Mehta, Jingtao Sun
  • Patent number: 10793923
    Abstract: Methods for the rapid detection of the presence or absence of BK virus in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting BK virus and kits are provided that are designed for the detection of BK virus.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: October 6, 2020
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Rochak Mehta, Jingtao Sun
  • Patent number: 10443095
    Abstract: Improved methods for the detection and quantitation of a target nucleic acid in a sample using a non-extending helper oligonucleotide are described. The methods include contacting nucleic acids in a sample with amplification reagents including one or more primers, one or more non-extending helper oligonucleotides, and one or more probes. The non-extending helper oligonucleotide facilitates and increases the target nucleic acid accessibility of one or more of the primers, result in greater accumulation of amplicon production, thereby increasing the efficiency and sensitivity of the amplification assay, including amplification assays for Hepatitis C Virus (HCV), for example, HCV Genotype 5. Kits, articles of manufacture, and reaction mixtures are also provided.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 15, 2019
    Assignee: Roche Molecular Systems, Inc.
    Inventor: Rochak Mehta
  • Patent number: 10370731
    Abstract: Methods for the rapid detection of the presence or absence of Hepatitis C Virus (HCV) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting HCV and kits are provided that are designed for the detection of HCV.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: August 6, 2019
    Assignee: ROCHE MOLECULAR SYSTEMS, INC.
    Inventor: Rochak Mehta
  • Publication number: 20180355412
    Abstract: Methods for the rapid detection of the presence or absence of Mycobacterium tuberculosis (MTB) resistant to rifampicin (MTB-RIF) and/or MTB resistant to isoniazid (MTB-INH) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers, probes targeting the genes for rpoB, inhA, and katG, along with kits are provided that are designed for the detection of MTB-RIF and/or MTB-INH.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 13, 2018
    Inventors: Jenny A. Johnson, Rochak Mehta, Andy Yuen
  • Patent number: 10093964
    Abstract: SNP specific hydrolysis probe including a hairpin structure toward the 3? end, along with kits are provided that are designed for the detection of a SNP in a target nucleic acid.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: October 9, 2018
    Assignee: Roche Molecular Systems, Inc.
    Inventor: Rochak Mehta
  • Patent number: 10087490
    Abstract: Methods for the rapid detection of the presence or absence of Mycobacterium tuberculosis (MTB) resistant to rifampicin (MTB-RIF) and/or MTB resistant to isoniazid (MTB-INH) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers, probes targeting the genes for rpoB, inhA, and katG, along with kits are provided that are designed for the detection of MTB-RIF and/or MTB-INH.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 2, 2018
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Jenny A. Johnson, Rochak Mehta, Andy Yuen
  • Publication number: 20180127838
    Abstract: Methods for the rapid detection of the presence or absence of BK virus in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting BK virus and kits are provided that are designed for the detection of BK virus.
    Type: Application
    Filed: October 6, 2017
    Publication date: May 10, 2018
    Inventors: Rochak Mehta, Jingtao Sun
  • Publication number: 20180037945
    Abstract: Improved methods for the detection and quantitation of a target nucleic acid in a sample using a non-extending helper oligonucleotide are described. The methods include contacting nucleic acids in a sample with amplification reagents including one or more primers, one or more non-extending helper oligonucleotides, and one or more probes. The non-extending helper oligonucleotide facilitates and increases the target nucleic acid accessibility of one or more of the primers, result in greater accumulation of amplicon production, thereby increasing the efficiency and sensitivity of the amplification assay, including amplification assays for Hepatitis C Virus (HCV), for example, HCV Genotype 5. Kits, articles of manufacture, and reaction mixtures are also provided.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 8, 2018
    Inventor: Rochak Mehta
  • Publication number: 20170356058
    Abstract: Methods for the rapid detection of the presence or absence of Hepatitis C Virus (HCV) in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting HCV and kits are provided that are designed for the detection of HCV.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventor: Rochak Mehta
  • Patent number: 9689026
    Abstract: Methods for the rapid detection of the presence or absence of a SNP in a target nucleic acid in a sample are described. The methods can include performing an amplifying step, a hybridizing step utilizing a double stranded probe with two overlapping SNP specific hydrolysis probe sequences where one of the probe sequences can include a hairpin structure toward the 3? end, and a detecting step. Furthermore, the double stranded SNP specific hydrolysis probes along with kits are provided that are designed for the detection of a SNP in a target nucleic acid.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: June 27, 2017
    Assignee: Roche Molecular Systems, Inc.
    Inventor: Rochak Mehta
  • Publication number: 20170096634
    Abstract: A pre-analytic reagent is provided for liquefaction of a sputum sample and complete inactivation of one or more Mycobacteria, e.g., Mycobacterium tuberculosis (MTB) suspected of being contained in the sputum sample at room temperature. The pre-analytic reagent may include one or more of each of: a chaotropic agent, a chelator, a reducing agent, a detergent, and acetic acid. The pre-analytic reagent can be configured to be effective to liquefy the sputum sample and completely inactivate the Mycobacteria suspected to be contained therein.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 6, 2017
    Inventors: Rochak Mehta, Jenny A. Johnson
  • Publication number: 20160340711
    Abstract: Methods for the rapid detection of the presence or absence of a SNP in a target nucleic acid in a sample are described. The methods can include performing an amplifying step, a hybridizing step utilizing a double stranded probe with two overlapping SNP specific hydrolysis probe sequences where one of the probe sequences can include a hairpin structure toward the 3? end, and a detecting step. Furthermore, the double stranded SNP specific hydrolysis probes along with kits are provided that are designed for the detection of a SNP in a target nucleic acid.
    Type: Application
    Filed: August 9, 2016
    Publication date: November 24, 2016
    Inventor: Rochak Mehta
  • Patent number: 9441268
    Abstract: Methods for the rapid detection of the presence or absence of a SNP in a target nucleic acid in a sample are described. The methods can include performing an amplifying step, a hybridizing step utilizing a double stranded probe with two overlapping SNP specific hydrolysis probe sequences where one of the probe sequences can include a hairpin structure toward the 3? end, and a detecting step. Furthermore, the double stranded SNP specific hydrolysis probes along with kits are provided that are designed for the detection of a SNP in a target nucleic acid.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 13, 2016
    Assignee: Roche Molecular Systems, Inc.
    Inventor: Rochak Mehta