Patents by Inventor Matthew D. Rifat

Matthew D. Rifat 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: 11162921
    Abstract: A method for extracting pharmacogenetic DNA from dried blood that is retained in a solid resin collection device includes one or more of the steps of combining the dried blood and at least a portion of the solid resin collection device in a first vessel, sonicating the first vessel containing the dried blood and at least a portion of the solid resin collection device, moving at least some of the contents of the first vessel including the portion of the solid resin collection device to a solid resin spin column, adding an elution buffer to the solid resin spin column, centrifuging the solid resin spin column so that at least some of the contents of the solid resin spin column are transferred to a second vessel, and processing the contents of the second vessel by conducting one of capillary electrophoresis, Next-Generation Sequencing, DNA sequencing or genotyping, and mass spectrometry-based sequencing on the contents of the second vessel.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: November 2, 2021
    Assignee: ALCALA PHARMACEUTICAL, INC.
    Inventors: David J. Smith, Christian Tagwerker, Matthew D. Rifat
  • Patent number: 11054349
    Abstract: A method for preparation of a dried blood sample for multiplexing of analytes includes the steps of mixing an Internal Standard solution with a first diluent in a vessel, the Internal Standard solution including a plurality of different Internal Standards, adding the dried blood sample to the vessel, sonicating the vessel containing the Internal Standard solution, the first diluent and the dried blood sample, and removing the dried blood sample from the vessel. The Internal Standard solution can include a plurality of Internal Standards. The Internal Standard solution can include at least 15 Internal Standards. The dried blood sample can be generated using less than 50 ?L of blood. The dried blood sample can be generated using less than 10 ?L of blood. The first diluent can include methanol or a mixture of water and methanol.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: July 6, 2021
    Assignee: ALCALA PHARMACEUTICAL, INC.
    Inventors: David J. Smith, Matthew D. Rifat, Christian Tagwerker, Irfan Baig, Ranulu Samanthi de Zoysa, Eric J. Brunson
  • Publication number: 20200309742
    Abstract: A method for extracting pharmacogenetic DNA from dried blood that is retained in a solid resin collection device includes one or more of the steps of combining the dried blood and at least a portion of the solid resin collection device in a first vessel, sonicating the first vessel containing the dried blood and at least a portion of the solid resin collection device, moving at least some of the contents of the first vessel including the portion of the solid resin collection device to a solid resin spin column, adding an elution buffer to the solid resin spin column, centrifuging the solid resin spin column so that at least some of the contents of the solid resin spin column are transferred to a second vessel, and processing the contents of the second vessel by conducting one of capillary electrophoresis, Next-Generation Sequencing, DNA sequencing or genotyping, and mass spectrometry-based sequencing on the contents of the second vessel.
    Type: Application
    Filed: March 16, 2020
    Publication date: October 1, 2020
    Inventors: David J. Smith, Christian Tagwerker, Matthew D. Rifat
  • Publication number: 20200256772
    Abstract: A method for qualitative and quantitative multiplexing of drug analytes from dried blood samples includes the steps of mixing an Internal Standard solution with a first diluent in a vessel, adding the dried blood sample to the vessel, sonicating the vessel containing the Internal Standard solution, the first diluent and the dried blood sample, removing the dried blood sample from the vessel so that a final sample can be attained, and analyzing at least a portion of the final sample using one of LC-MS and LC-MS/MS to simultaneously determine the presence or absence of a plurality of different analytes in the dried blood sample. The Internal Standard solution can include at least 8, 15, 25 or 50 Internal Standards. The dried blood sample is generated using less than 50 ?L, 20 ?L or 10 ?L of blood. The step of analyzing includes simultaneously determining the presence or absence of at least 15, 60, 90 or 130 different analytes.
    Type: Application
    Filed: April 29, 2020
    Publication date: August 13, 2020
    Inventors: David J. Smith, Matthew D. Rifat, Christian Tagwerker, Irfan Baig, Ranulu Samanthi de Zoysa, Eric J. Brunson
  • Patent number: 10656059
    Abstract: A method for qualitative and quantitative multiplexing of drug analytes from dried blood samples includes the steps of mixing an Internal Standard solution with a first diluent in a vessel, adding the dried blood sample to the vessel, sonicating the vessel containing the Internal Standard solution, the first diluent and the dried blood sample, removing the dried blood sample from the vessel so that a final sample can be attained, and analyzing at least a portion of the final sample using one of LC-MS and LC-MS/MS to simultaneously determine the presence or absence of a plurality of different analytes in the dried blood sample. The Internal Standard solution can include at least 8, 15, 25 or 50 Internal Standards. The dried blood sample is generated using less than 50 ?L, 20 ?L or 10 ?L of blood. The step of analyzing includes simultaneously determining the presence or absence of at least 15, 60, 90 or 130 different analytes.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: May 19, 2020
    Assignee: ALCALA PHARMACEUTICAL, INC.
    Inventors: David J. Smith, Matthew D. Rifat, Christian Tagwerker, Irfan Baig, Ranulu Samanthi de Zoysa, Eric J. Brunson
  • Publication number: 20190277734
    Abstract: A method for qualitative and quantitative multiplexing of drug analytes from dried blood samples includes the steps of mixing an Internal Standard solution with a first diluent in a vessel, adding the dried blood sample to the vessel, sonicating the vessel containing the Internal Standard solution, the first diluent and the dried blood sample, removing the dried blood sample from the vessel so that a final sample can be attained, and analyzing at least a portion of the final sample using one of LC-MS and LC-MS/MS to simultaneously determine the presence or absence of a plurality of different analytes in the dried blood sample. The Internal Standard solution can include at least 8, 15, 25 or 50 Internal Standards. The dried blood sample is generated using less than 50 ?L, 20 ?L or 10 ?L of blood. The step of analyzing includes simultaneously determining the presence or absence of at least 15, 60, 90 or 130 different analytes.
    Type: Application
    Filed: February 21, 2019
    Publication date: September 12, 2019
    Inventors: David J. Smith, Matthew D. Rifat, Christian Tagwerker, Irfan Baig, Ranulu Samanthi de Zoysa, Eric J. Brunson