Patents by Inventor Keqin Gregg

Keqin Gregg 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: 11946861
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: April 2, 2024
    Assignee: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Publication number: 20240027334
    Abstract: Provided herein are methods for determining if a urine sample comprises synthetic urine, methods for matching a urine sample to a subject, and methods for amplifying DNA. Also provided are kits that include a set of at least 3 pairs of a pre-amplification forward and reverse primer, where each pair of pre-amplification forward and reverse primers is designed to amplify 250 to 300 nucleotides of genomic DNA that contains one of at least 3 SNPs, where the pre-amplification forward and reverse primers in each of the three or more pairs of pre-amplification primers contains (i) a sequence of about 17 to about 25 contiguous nucleotides that is complementary to a sequence in the genomic DNA and (i) a tag sequence of about 17 to about 25 contiguous nucleotides that is not complementary to a sequence in the genomic DNA.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 25, 2024
    Inventors: Matt McCarty, Keqin Gregg
  • Publication number: 20220276156
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Application
    Filed: August 2, 2021
    Publication date: September 1, 2022
    Applicant: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Patent number: 11079320
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 3, 2021
    Assignee: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Publication number: 20200116628
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Application
    Filed: September 9, 2019
    Publication date: April 16, 2020
    Applicant: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Patent number: 10451544
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 22, 2019
    Assignee: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Publication number: 20190170639
    Abstract: This disclosure relates to methods of characterizing a urine sample from a subject.
    Type: Application
    Filed: October 11, 2017
    Publication date: June 6, 2019
    Applicant: Genotox Laboratories
    Inventors: Nicholas D. Laude, William S. Edgemond, Keqin Gregg
  • Publication number: 20160145684
    Abstract: Provided herein are methods for determining if a urine sample comprises synthetic urine, methods for matching a urine sample to a subject, and methods for amplifying DNA. Also provided are kits that include a set of at least 3 pairs of a pre-amplification forward and reverse primer, where each pair of pre-amplification forward and reverse primers is designed to amplify 250 to 300 nucleotides of genomic DNA that contains one of at least 3 SNPs, where the pre-amplification forward and reverse primers in each of the three or more pairs of pre-amplification primers contains (i) a sequence of about 17 to about 25 contiguous nucleotides that is complementary to a sequence in the genomic DNA and (i) a tag sequence of about 17 to about 25 contiguous nucleotides that is not complementary to a sequence in the genomic DNA.
    Type: Application
    Filed: June 26, 2015
    Publication date: May 26, 2016
    Inventors: Matt McCarty, Keqin Gregg
  • Publication number: 20080131886
    Abstract: The present disclosure relates to methods of DNA amplification with a first primer that has a random sequence of nucleotides at its 3? end and a generic sequence 5? of the random nucleotides, as well as a second primer with the generic sequence of the first primer. The disclosure further relates to a method of precipitating DNA on a solid medium to improve DNA amplification. In a preferred embodiment, the presently disclosed methods are used for high-throughput genotyping of DNA samples, such as bloodstains or trace amounts of DNA.
    Type: Application
    Filed: April 27, 2007
    Publication date: June 5, 2008
    Applicant: Invitrogen Corporation
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Kristen Taylor, Scott Davis
  • Publication number: 20060246503
    Abstract: The present disclosure relates to methods of DNA amplification with a first primer that has a random sequence of nucleotides at its 3? end and a generic sequence 5? of the random nucleotides, as well as a second primer with the generic sequence of the first primer. The disclosure further relates to a method of precipitating DNA on a solid medium to improve DNA amplification. In a preferred embodiment, the presently disclosed methods are used for high-throughput genotyping of DNA samples, such as bloodstains or trace amounts of DNA.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 2, 2006
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Kristen Taylor, Scott Davis
  • Publication number: 20050009015
    Abstract: A method and associated compositions for the relative quantification of nucleic acid on an address-defined surface, involving fitting the nucleic acid with a generic oligonucleotide, and hybridizing the generic oligonucleotide with a directly or indirectly labeled complementary oligonucleotide. The method is applicable, for example, to SNP genotyping and gene expression analysis.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 13, 2005
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Scott Davis
  • Publication number: 20040043416
    Abstract: The present disclosure relates to methods of DNA amplification with a first primer that has a random sequence of nucleotides at its 3′ end and a generic sequence 5′ of the random nucleotides, as well as a second primer with the generic sequence of the first primer. The disclosure further relates to a method of precipitating DNA on a solid medium to improve DNA amplification. In a preferred embodiment, the presently disclosed methods are used for high-throughput genotyping of DNA samples, such as bloodstains or trace amounts of DNA.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 4, 2004
    Applicant: Invitrogen Corporation
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Kristen Taylor, Scott Davis
  • Patent number: 6638722
    Abstract: The present disclosure relates to methods of DNA amplification with a first primer that has a random sequence of nucleotides at its 3′ end and a generic sequence 5′ of the random nucleotides, as well as a second primer with the generic sequence of the first primer. The disclosure further relates to a method of precipitating DNA on a solid medium to improve DNA amplification. In a preferred embodiment, the presently disclosed methods are used for high-throughput genotyping of DNA samples, such as bloodstains or trace amounts of DNA.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: October 28, 2003
    Assignee: Invitrogen Corporation
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Kristen Taylor, Scott Davis
  • Publication number: 20030108870
    Abstract: The present disclosure relates to methods of DNA amplification with a first primer that has a random sequence of nucleotides at its 3′ end and a generic sequence 5′ of the random nucleotides, as well as a second primer with the generic sequence of the first primer. The disclosure further relates to a method of precipitating DNA on a solid medium to improve DNA amplification. In a preferred embodiment, the presently disclosed methods are used for high-throughput genotyping of DNA samples, such as bloodstains or trace amounts of DNA.
    Type: Application
    Filed: June 13, 2001
    Publication date: June 12, 2003
    Inventors: Wan Ji, Keqin Gregg, Bonnie Reus, Jon Kemppainen, Kristen Taylor, Scott Davis