Patents by Inventor David Judson Ross

David Judson Ross 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).

  • Gradient elution moving boundary electrophoresis for use with complex samples and detection of toxins
    Patent number: 11479804
    Abstract: Methods of detecting the presence of toxins in a sample using electrophoretic separations and of performing electrophoretic separation of complex samples are provided. The method of detecting the presence of toxins includes reacting a sample and a substrate with a signaling enzyme which converts the substrate to the product in a reaction medium, introducing a run buffer into a separation channel having an inlet end, selectively introducing at least one of the substrate and the product of the reaction medium into the inlet end of the separation channel, electrophoretically separating the substrate and the product, and determining the rate of conversion of the substrate to the product, wherein a change in the rate of conversion is indicative of the presence of toxins.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: October 25, 2022
    Assignee: Applied Research Associates, Inc.
    Inventors: Alyssa Catharyn Henry, David Judson Ross
  • Gradient elution moving boundary electrophoresis for use with complex samples and detection of toxins
    Patent number: 10167498
    Abstract: Methods of detecting the presence of toxins in a sample using electrophoretic separations and of performing electrophoretic separation of complex samples are provided. The method of detecting the presence of toxins includes reacting a sample and a substrate with a signaling enzyme which converts the substrate to the product in a reaction medium, introducing a run buffer into a separation channel having an inlet end, selectively introducing at least one of the substrate and the product of the reaction medium into the inlet end of the separation channel, electrophoretically separating the substrate and the product, and determining the rate of conversion of the substrate to the product, wherein a change in the rate of conversion is indicative of the presence of toxins.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 1, 2019
    Inventors: Alyssa Catharyn Henry, David Judson Ross
  • Gradient elution moving boundary electrophoresis for use with complex samples and detection of toxins
    Patent number: 9261482
    Abstract: Methods of detecting the presence of toxins in a sample using electrophoretic separations and of performing electrophoretic separation of complex samples are provided. The method of detecting the presence of toxins includes reacting a sample and a substrate with a signaling enzyme which converts the substrate to the product in a reaction medium, introducing a run buffer into a separation channel having an inlet end, selectively introducing at least one of the substrate and the product of the reaction medium into the inlet end of the separation channel, electrophoretically separating the substrate and the product, and determining the rate of conversion of the substrate to the product, wherein a change in the rate of conversion is indicative of the presence of toxins.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: February 16, 2016
    Assignee: Applied Research Associates, Inc.
    Inventors: Alyssa Catharyn Henry, David Judson Ross