Patents by Inventor Aaron Kauffmann

Aaron Kauffmann 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: 20260115710
    Abstract: A laminated test strip device for detecting the presence of a plurality of target analytes in a biological sample is disclosed. The laminated test strip device is formed of a plurality of laminated layers of material that control sample flow and sample metering. Methods of producing and using the laminated test strip device are also disclosed.
    Type: Application
    Filed: January 29, 2024
    Publication date: April 30, 2026
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Lloyd Schulman
  • Patent number: 12553905
    Abstract: Devices, assemblies, and kits are disclosed for separating and/or metering a plasma sample from a patient's liquid test sample. Also disclosed are methods of producing and using same.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: February 17, 2026
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Jon Stradinger, David Ledden
  • Patent number: 12474356
    Abstract: Disclosed herein are methods for rapid detection of suspension of a blood sample from a subject and methods for improving the processing time of a point of care blood analysis. Specifically, the disclosed methods provide a rapid detection of hemoglobin concentration, more specifically glycated hemoglobin A1c, and determination of sugar concentration in the blood sample from the subject. Further disclosed herein are methods for rapidly diagnosing diabetes in a subject.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: November 18, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Chris Zimmerle
  • Publication number: 20250347683
    Abstract: A tangent flow hemolysis blood testing assembly, device and method are described herein.
    Type: Application
    Filed: July 18, 2025
    Publication date: November 13, 2025
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, David Ledden, Jennifer Samproni
  • Patent number: 12440834
    Abstract: Analytical assay reaction cartridges are disclosed that include a reagent tray containing a liquid reagent disposed therein and a flexible cover removably attached thereto. The flexible cover has a portion that extends beyond the reagent tray and that forms a tab portion extends through an opening in a lid member of the cartridge in order to facilitate removal of at least a portion of the cover and release of the liquid reagent. Also disclosed are analytical assay reaction kits that include the cartridges and diagnostic instruments for use with the analytical assay reaction cartridges/kits, as well as methods of making and using the cartridges/kits.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: October 14, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann
  • Patent number: 12399169
    Abstract: A tangent flow hemolysis blood testing assembly, device and method are described herein. The presently disclosed and claimed inventive concept(s) relate to a device(s), kit(s), and method(s) for injecting a patient's liquid test sample into a reaction vessel. More specifically, the presently disclosed and claimed inventive concept(s) relate to an improved liquid test sample injection device that comprises a plug that forms an airtight seal that facilitates the active injection of a liquid test sample into a reaction vessel, and kits and methods of use related thereto.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: August 26, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, David Ledden, Jennifer Samproni
  • Publication number: 20250264480
    Abstract: An assay cartridge enabling improved measurement sensitivity of a target component (Troponin I or T) in the presence of high amount of albumin in a test sample. The assay cartridge includes a cartridge body including a sample inlet adapted to receive a patient sample and a reaction chamber coupled to the sample inlet, magnetic particles contained in the reaction chamber comprising a first antibody with a specific affinity towards the target component, electrodes provided at a location configured to be in contact with a rehydrated test sample containing the magnetic particles in the reaction chamber, and a sensor surface of the reaction chamber comprising a second antibody with a specific affinity towards the target component. Methods of quantifying a target component (e.g., a Troponin component) in immunoassay testing are provided, as are assay devices adapted to quantify a target component (e.g., Troponin I or T).
    Type: Application
    Filed: April 21, 2023
    Publication date: August 21, 2025
    Inventors: Aaron Kauffmann, Jeffrey Mayfield, Alexander van Reenen
  • Publication number: 20250244314
    Abstract: Devices and methods for the hook effect detection associated with analytes of interest in the conductance of one or more diagnostic assays, including, without limitation, immunoassays.
    Type: Application
    Filed: April 18, 2025
    Publication date: July 31, 2025
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Julie Chaney, Jon Stradinger, Aaron Kauffmann, Jeffrey Mayfield, Chris Zimmerle
  • Publication number: 20250237646
    Abstract: Lateral flow assay devices and kits for use in the detection of creatinine and in the detection of hemolysis in a biological fluid sample are disclosed. Methods of making and using the lateral flow assay devices and kits are also disclosed.
    Type: Application
    Filed: April 10, 2023
    Publication date: July 24, 2025
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Jeffrey Mayfield
  • Patent number: 12311363
    Abstract: Microfluidic devices, method for making and using same are disclosed. The microfluidic device can be made by applying a reagent in liquid form into a sample treatment site within a substrate base. The substrate base has hydrophilic properties bordering a flow channel, and has an application site, the sample treatment site and an analytical site. The flow channel is sized and configured so as to draw a sample applied into the application site to the analytical site through the sample treatment site by capillary action. The reagent is freeze-dried within the sample treatment site.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 27, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Jeffrey Mayfield, David Ledden
  • Patent number: 12313626
    Abstract: Devices and methods for the hook effect detection associated with analytes of interest in the conductance of one or more diagnostic assays, including, without limitation, immunoassays.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 27, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Julie Chaney, Jon Stradinger, Aaron Kauffmann, Jeffrey Mayfield, Chris Zimmerle
  • Patent number: 12247989
    Abstract: Devices and methods for calculating various coagulation characteristics associated with a patients liquid test sample. The presently disclosed and claimed inventive concept(s) relate to an improved device(s) and method(s) for conducting coagulation assays on a patients liquid test sample, including, without limitation, a patients whole blood sample.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 11, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann
  • Patent number: 11994517
    Abstract: Analytical assay reaction cartridges, kits containing same, and methods of production and use thereof are disclosed. These cartridges include a magnetic assembly that surrounds at least a portion of a sample read window on the cartridge. The cartridge also includes an analytical reagent positioned therewithin, wherein the analytical reagent comprises magnetic beads coated with at least one anti-red blood cell antibody.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: May 28, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Jon Stradinger
  • Patent number: 11971415
    Abstract: Devices, kits, and methods related to embodiments of an improved liquid test sample injection device comprising a sample mixture that comprises at least one sample flag compound for detecting the presence or non-presence of a patient's liquid test sample upon being interrogated by a pre-determined wavelength of light.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 30, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann
  • Patent number: 11859734
    Abstract: A microfluidic device has a first substrate, a resilient diaphragm, an actuator, and a second substrate. The first substrate has an opening extending therethrough. The resilient diaphragm is secured to a second side and surrounds the opening. The actuator is secured to a first side and surrounds the opening. The first substrate, the resilient diaphragm, and the actuator cooperate to form a gas-tight chamber. The second substrate has a channel formed therein having a first end and a second end. The second substrate is secured to the first substrate. A volume of gas disposed in the gas-tight chamber pressurizes the gas-tight chamber and expands the resilient diaphragm such that the resilient diaphragm is disposed in the channel between the first end and the second end. The resilient diaphragm retracts from the channel to open the channel from the first end and the second when the gas-tight chamber is depressurized.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: January 2, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann
  • Patent number: 11850583
    Abstract: Devices, kits, and methods separating and metering a plasma sample from a patient's liquid test sample.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: December 26, 2023
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, David Ledden
  • Publication number: 20230383865
    Abstract: A microfluidic device has a first substrate, a resilient diaphragm, an actuator, and a second substrate. The first substrate has an opening extending therethrough. The resilient diaphragm is secured to a second side and surrounds the opening. The actuator is secured to a first side and surrounds the opening. The first substrate, the resilient diaphragm, and the actuator cooperate to form a gas-tight chamber. The second substrate has a channel formed therein having a first end and a second end. The second substrate is secured to the first substrate. A volume of gas disposed in the gas-tight chamber pressurizes the gas-tight chamber and expands the resilient diaphragm such that the resilient diaphragm is disposed in the channel between the first end and the second end. The resilient diaphragm retracts from the channel to open the channel from the first end and the second when the gas-tight chamber is depressurized.
    Type: Application
    Filed: November 12, 2021
    Publication date: November 30, 2023
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann
  • Publication number: 20230347338
    Abstract: A reagent strip is described. The reagent strip includes a substrate and at least one reagent pad positioned on the substrate. The substrate has a storage unit storing an authentication code. The authentication code has a lot value and a secondary value related to the lot value by a predetermined function assigned to the lot value.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 2, 2023
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Manish Deshpande
  • Publication number: 20230228773
    Abstract: Devices, assemblies, and kits are disclosed for separating and/or metering a plasma sample from a patient's liquid test sample. Also disclosed are methods of producing and using same.
    Type: Application
    Filed: June 28, 2021
    Publication date: July 20, 2023
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Aaron Kauffmann, Jon Stradinger, David Ledden
  • Publication number: 20230211336
    Abstract: Analytical assay reaction cartridges are disclosed that include a reagent tray containing a liquid reagent disposed therein and a flexible cover removably attached thereto. The flexible cover has a portion that extends beyond the reagent tray and that forms a tab portion extends through an opening in a lid member of the cartridge in order to facilitate removal of at least a portion of the cover and release of the liquid reagent. Also disclosed are analytical assay reaction kits that include the cartridges and diagnostic instruments for use with the analytical assay reaction cartridges/kits, as well as methods of making and using the cartridges/kits.
    Type: Application
    Filed: April 20, 2021
    Publication date: July 6, 2023
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Aaron Kauffmann