Patents by Inventor Doug WHITMAN

Doug WHITMAN 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: 20230068047
    Abstract: Provided herein are methods and systems for detecting the presence or absence of multiple target nucleic acids in partitions of a digital amplification assay. In one embodiment of the method, different probes labeled with the same signal-generating label are distinguishable from each other as a result of having different melting temperatures in the presence of their cognate target nucleic acids. Following amplification of the target nucleic acids in a digital assay, signals are measured at three or more different temperatures and at least two relational values between signals measured at the three or more different temperatures are calculated and plotted against each other to classify partition subsets according to their target nucleic acid occupancy.
    Type: Application
    Filed: August 17, 2022
    Publication date: March 2, 2023
    Applicant: LUMINEX CORPORATION
    Inventors: Jenni BERNIER, Doug WHITMAN
  • Publication number: 20220282307
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes capable of forming double-stranded structures, such as hairpin structures, which probes can be distinguished from one another on the basis of reporter signal, melt properties, or both.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 8, 2022
    Applicant: LUMINEX CORPORATION
    Inventor: Doug WHITMAN
  • Patent number: 11371080
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes capable of forming double-stranded structures, such as hairpin structures, which probes can be distinguished from one another on the basis of reporter signal, melt properties, or both.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 28, 2022
    Assignee: LUMINEX CORPORATION
    Inventor: Doug Whitman
  • Patent number: 11371082
    Abstract: Nucleic acid constructs and methods that provide superior prevention of primer-dimers and other artifacts of false priming events are disclosed. In particular, there is disclosed a hairpin primer having a target-specific primer region, wherein the target-specific region comprises a target-binding dependent cleavage sequence; a first stem forming region 5? of the target-specific primer region; and a second stem forming region 3? of the target-specific primer region, wherein the second stem forming region is complementary to the first stem forming region. Methods of using the hairpin primer to amplify a target nucleic acid are also disclosed.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: June 28, 2022
    Assignee: LUMINEX CORPORATION
    Inventors: Martin Kochanczyk, Doug Whitman
  • Publication number: 20220154257
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of primers or probes that comprise a non-natural nucleotide linked to a reporter. Target nucleic acids are detected by the polymerization of a complementary probe or primer that incorporated a cognate non-natural nucleotide linked to a quencher.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Applicant: LUMINEX CORPORATION
    Inventors: Doug WHITMAN, Nicolas ARAB, Chuck COLLINS
  • Patent number: 11261481
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of primers or probes that comprise a non-natural nucleotide linked to a reporter. Target nucleic acids are detected by the polymerization of a complementary probe or primer that incorporated a cognate non-natural nucleotide linked to a quencher.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: March 1, 2022
    Assignee: LUMINEX CORPORATION
    Inventors: Doug Whitman, Nicolas Arab, Chuck Collins
  • Publication number: 20210310056
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In one embodiment, a sample is contacted with a primer and a quencher-probe complementary to a target nucleic acid. The quencher-probe is complementary to an anti-probe that comprises a reporter and is attached to a solid support. Thus, hybridized probe is cleaved with a nucleic acid polymerase having exonuclease activity to release the quencher from the probe. The presence of the target nucleic acid is then detected and/or optionally quantified by detecting an increase in signal from the fluorescent reporter on the solid support.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Applicant: LUMINEX CORPORATION
    Inventors: Doug WHITMAN, Brian SCHRADER
  • Publication number: 20210189469
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes that comprise a ribonucleotide position that is susceptible to endoribonuclease (e.g., RNase H) cleavage in the presence of target nucleic acid molecules. Probes of the embodiments may also comprise non-natural nucleotide linked to a reporter and/or quenching moiety.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Applicant: LUMINEX CORPORATION
    Inventors: Scott C. JOHNSON, Nicolas ARAB, Doug WHITMAN
  • Patent number: 10975419
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes that comprise a ribonucleotide position that is susceptible to endoribonuclease (e.g., RNase H) cleavage in the presence of target nucleic acid molecules. Probes of the embodiments may also comprise non-natural nucleotide linked to a reporter and/or quenching moiety.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 13, 2021
    Assignee: LUMINEX CORPORATION
    Inventors: Scott C. Johnson, Nicolas Arab, Doug Whitman
  • Patent number: 10851336
    Abstract: Methods and systems for magnetic mixing. Particular embodiments relate to applying a magnetic field to move a magnetically responsive component in a chamber.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: December 1, 2020
    Assignee: LUMINEX CORPORATION
    Inventors: Doug Whitman, James Heisler, Colin Bozarth, Germaine Siew, Charles Collins, Eric Smith
  • Publication number: 20200362396
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes that comprise a ribonucleotide position that is susceptible to endoribonuclease (e.g., RNase H) cleavage in the presence of target nucleic acid molecules. Probes of the embodiments may also comprise non-natural nucleotide linked to a reporter and/or quenching moiety.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Applicant: LUMINEX CORPORATION
    Inventors: Scott C. JOHNSON, Nicolas ARAB, Doug WHITMAN
  • Patent number: 10752939
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes that comprise a ribonucleotide position that is susceptible to endoribonuclease (e.g., RNase H) cleavage in the presence of target nucleic acid molecules. Probes of the embodiments may also comprise non-natural nucleotide linked to a reporter and/or quenching moiety.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 25, 2020
    Assignee: LUMINEX CORPORATION
    Inventors: Scott C. Johnson, Nicolas Arab, Doug Whitman
  • Publication number: 20200263240
    Abstract: Nucleic acid constructs and methods that provide superior prevention of primer-dimers and other artifacts of false priming events are disclosed. In particular, there is disclosed a hairpin primer having a target-specific primer region, wherein the target-specific region comprises a target-binding dependent cleavage sequence; a first stem forming region 5? of the target-specific primer region; and a second stem forming region 3? of the target-specific primer region, wherein the second stem forming region is complementary to the first stem forming region. Methods of using the hairpin primer to amplify a target nucleic acid are also disclosed.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 20, 2020
    Applicant: LUMINEX CORPORATION
    Inventors: Martin KOCHANCZYK, Doug WHITMAN
  • Publication number: 20200199658
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of primers or probes that comprise a non-natural nucleotide linked to a reporter. Target nucleic acids are detected by the polymerization of a complementary probe or primer that incorporated a cognate non-natural nucleotide linked to a quencher.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Applicant: LUMINEX CORPORATION
    Inventors: Doug WHITMAN, Nicolas ARAB, Chuck COLLINS
  • Patent number: 10683535
    Abstract: Nucleic acid constructs and methods that provide superior prevention of primer-dimers and other artifacts of false priming events are disclosed. In particular, there is disclosed a hairpin primer having a target-specific primer region, wherein the target-specific region comprises a target-binding dependent cleavage sequence; a first stem forming region 5? of the target-specific primer region; and a second stem forming region 3? of the target-specific primer region, wherein the second stem forming region is complementary to the first stem forming region. Methods of using the hairpin primer to amplify a target nucleic acid are also disclosed.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: June 16, 2020
    Assignee: LUMINEX CORPORATION
    Inventors: Martin Kochanczyk, Doug Whitman
  • Publication number: 20200172964
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes capable of forming double-stranded structures, such as hairpin structures, which probes can be distinguished from one another on the basis of reporter signal, melt properties, or both.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 4, 2020
    Applicant: LUMINEX CORPORATION
    Inventor: Doug WHITMAN
  • Patent number: 10612074
    Abstract: Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of primers or probes that comprise a non-natural nucleotide linked to a reporter. Target nucleic acids are detected by the polymerization of a complementary probe or primer that incorporated a cognate non-natural nucleotide linked to a quencher.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: April 7, 2020
    Assignee: LUMINEX CORPORATION
    Inventors: Doug Whitman, Nicolas Arab, Chuck Collins
  • Publication number: 20190093061
    Abstract: Methods and systems for magnetic mixing. Particular embodiments relate to applying a magnetic field to move a magnetically responsive component in a chamber.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Applicant: LUMINEX CORPORATION
    Inventors: Doug WHITMAN, James HEISLER, Colin BOZARTH, Germaine SIEW, Charles COLLINS, Eric SMITH
  • Patent number: 10179899
    Abstract: Methods and systems for magnetic mixing. Particular embodiments relate to applying a magnetic field to move a magnetically responsive component in a chamber.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: January 15, 2019
    Assignee: LUMINEX CORPORATION
    Inventors: Doug Whitman, James Heisler, Colin Bozarth, Germaine Siew, Charles Collins, Eric Smith
  • Publication number: 20180355415
    Abstract: Nucleic acid constructs and methods that provide superior prevention of primer-dimers and other artifacts of false priming events are disclosed. In particular, there is disclosed a hairpin primer having a target-specific primer region, wherein the target-specific region comprises a target-binding dependent cleavage sequence; a first stem forming region 5? of the target-specific primer region; and a second stem forming region 3? of the target-specific primer region, wherein the second stem forming region is complementary to the first stem forming region. Methods of using the hairpin primer to amplify a target nucleic acid are also disclosed.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 13, 2018
    Applicant: LUMINEX CORPORATION
    Inventors: Martin KOCHANCZYK, Doug WHITMAN