Patents by Inventor Curtis Hubert Stumpf

Curtis Hubert Stumpf 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: 11119014
    Abstract: A method and apparatus for the rapid and reliable preparation of a sample for use in testing for target analytes such as bacteria, viruses, toxins and pathogenic agents in various products. A sample for testing the target analyte is collected from various sources. The method for sample preparation provides for an express process for preparing collected samples for testing. The collected sample may be concentrated by centrifugation, filtration, or other means suitable for sample concentration, homogenized with the addition of a broth and enriched for specified period of time. Immunomagnetic separation of the sample occurs with receptor-coated magnetic microspheres in different test-specific formulations (singleplex or multiplex). An automatic testing system is disclosed which includes a biological testing cassette, in which testing of the sample occurs using liquid crystal diagnostic methodologies.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: September 14, 2021
    Assignee: Pathogen Systems, Inc.
    Inventors: Curtis Hubert Stumpf, Weidong Zhao
  • Publication number: 20200300737
    Abstract: A method and apparatus for the rapid and reliable preparation of a sample for use in testing for target analytes such as bacteria, viruses, toxins and pathogenic agents in various products. A sample for testing the target analyte is collected from various sources. The method for sample preparation provides for an express process for preparing collected samples for testing. The collected sample may be concentrated by centrifugation, filtration, or other means suitable for sample concentration, homogenized with the addition of a broth and enriched for specified period of time. Immunomagnetic separation of the sample occurs with receptor-coated magnetic microspheres in different test-specific formulations (singleplex or multiplex). An automatic testing system is disclosed which includes a biological testing cassette, in which testing of the sample occurs using liquid crystal diagnostic methodologies.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 24, 2020
    Applicant: Pathogen Systems, Inc. dba Crystal Diagnostics Ltd
    Inventors: Curtis Hubert Stumpf, Weidong Zhao
  • Publication number: 20180283997
    Abstract: A method and apparatus for the rapid and reliable preparation of a sample for use in testing for target analytes such as bacteria, viruses, toxins and pathogenic agents in various products. A sample for testing the target analyte is collected from various sources. The method for sample preparation provides for an express process for preparing collected samples for testing. The collected sample may be concentrated by centrifugation, filtration, or other means suitable for sample concentration, homogenized with the addition of a broth and enriched for specified period of time. Immunomagnetic separation of the sample occurs with receptor-coated magnetic microspheres in different test-specific formulations (singleplex or multiplex). An automatic testing system is disclosed which includes a biological testing cassette, in which testing of the sample occurs using liquid crystal diagnostic methodologies.
    Type: Application
    Filed: June 4, 2018
    Publication date: October 4, 2018
    Applicant: Pathogen Systems, Inc. dba Crystal Diagnostics Ltd
    Inventors: Curtis Hubert Stumpf, Weidong Zhao
  • Publication number: 20160291002
    Abstract: A method and apparatus for the rapid and reliable preparation of a sample for use in testing for target analytes such as bacteria, viruses, toxins and pathogenic agents in various products. A sample for testing the target analyte is collected from various sources. The method for sample preparation provides for an express process for preparing collected samples for testing. The collected sample may be concentrated by centrifugation, filtration, or other means suitable for sample concentration, homogenized with the addition of a broth and enriched for specified period of time. Immunomagnetic separation of the sample occurs with receptor-coated magnetic microspheres in different test-specific formulations (singleplex or multiplex). An automatic testing system is disclosed which includes a biological testing cassette, in which testing of the sample occurs using liquid crystal diagnostic methodologies.
    Type: Application
    Filed: March 8, 2016
    Publication date: October 6, 2016
    Applicant: Pathogen Systems, Inc. dba Crystal Diagnostics Ltd
    Inventors: Curtis Hubert Stumpf, Weidong Zhao