Patents by Inventor David James Saul

David James Saul 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: 10758900
    Abstract: The present invention provides an improved method and device for preparing, extracting, separating and/or purifying a biomolecule, for example, nucleic acid from a biological sample. The device comprises a heat-deformable material, such that an inner chamber adopts a second configuration having a chamber volume less than the chamber volume of a first configuration, thereby expelling at least a part of a processed sample through a second opening from the device, and thereby recovering the biomolecule-containing composition.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 1, 2020
    Inventor: David James Saul
  • Publication number: 20180043352
    Abstract: The present invention provides an improved method and device for preparing, extracting, separating and/or purifying a biomolecule, for example, nucleic acid from a biological sample. The device comprises a heat-deformable material, such that an inner chamber adopts a second configuration having a chamber volume less than the chamber volume of a first configuration, thereby expelling at least a part of a processed sample through a second opening from the device, and thereby recovering the biomolecule-containing composition.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 15, 2018
    Inventor: David James SAUL
  • Patent number: 8226906
    Abstract: A sample collection device suitable for low-volume extraction includes a substantially tubular collection vessel having a closed end, an open end, and one or more sidewalls defining a vessel chamber having a vessel volume. The device further includes a swab for sample collection. The swab formed with a substantially closed-celled polymer foam head and the swab is configured for insertion into the collection vessel.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: July 24, 2012
    Assignee: Zygem Corporation Limited
    Inventor: David James Saul
  • Publication number: 20120070824
    Abstract: The present invention relates to the preparation of a method for the preparation of nucleic acid samples, including the steps of adding at least one non-specific thermophilic enzyme to a sample containing nucleic acid for testing, and incubating said sample for a preferred period at 65-80° C. as required to effect one or more of lysis of cells, digestion of proteins, digestion of cell-wall enzymes, via activity of said thermophilic enzyme, wherein said thermophilic enzyme is substantially stable and active at 65-80° C. but which is readily autolysed and/or denatured when said sample is incubated at or above 90° C.
    Type: Application
    Filed: April 27, 2011
    Publication date: March 22, 2012
    Applicant: ZyGEM Corporation Limited
    Inventors: Roy McIver DANIEL, David James SAUL
  • Publication number: 20110020819
    Abstract: The present disclosure relates to methods and probes for rapid, single temperature (isothermal) detection of specific nucleic acid sequences. The methods and probes provide a simple method for detecting bioagents including bacteria and viruses, and the detection of specific genetic markers on any nucleic sequence.
    Type: Application
    Filed: January 8, 2009
    Publication date: January 27, 2011
    Applicant: ZYGEM CORPORATION LIMITED
    Inventors: David James Saul, Leo Samuel Payne
  • Publication number: 20090215068
    Abstract: The present invention relates to the preparation of a method for the preparation of nucleic acid samples, including the steps of adding at least one non-specific thermophilic enzyme to a sample containing nucleic acid for testing, and incubating said sample for a preferred period at 65-80° C. as required to effect one or more of lysis of cells, digestion of proteins, digestion of cell-wall enzymes, via activity of said thermophilic enzyme, wherein said thermophilic enzyme is substantially stable and active at 65-80° C. but which is readily autolysed and/or denatured when said sample is incubated at or above 90° C.
    Type: Application
    Filed: May 1, 2009
    Publication date: August 27, 2009
    Applicant: ZyGEM Corporation Limited
    Inventors: Roy Mclver Daniel, David James Saul
  • Patent number: 7547510
    Abstract: The present invention relates to thermostable proteinases from thermophilic Bacillus species and their uses in the preparation of nucleic acid samples. The enzymes of the invention are stable and active at 65-80° C., but are readily autolysed or denatured above 90° C.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 16, 2009
    Assignee: Zygem Corporation Limited
    Inventors: Roy McIver Daniel, David James Saul
  • Publication number: 20040197788
    Abstract: The present invention relates to thermostable proteinases from thermophilic Bacillus species and their uses in the preparation of nucleic acid samples. The enzymes of the invention are stable and active at 65-80 ° C., but are readily autolysed or denatured above 90° C.
    Type: Application
    Filed: June 1, 2004
    Publication date: October 7, 2004
    Inventors: Roy McIver Daniel, David James Saul