Patents by Inventor Marlene Frank

Marlene Frank 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).

  • Method for calibrating biomass sensors operating with impedance spectroscopy and use of a suspension for carrying out such a method
    Patent number: 11726077
    Abstract: A method is provided for calibrating impedance-spectroscopic biomass sensors that are embodied to detect information regarding the quantity and/or size of living cells in a biomass by means of an electric field having a periodically changing field direction A calibration suspension encompasses an electrically conductive viscously flowable or viscoelastic carrier substance and electrically conductive solid particles and/or solid semiconductor particles received therein. An electric field is generated having a periodically changing field direction, which acts on the calibration suspension. At least one permittivity value is detected, respectively representing a permittivity of the calibration suspension, in a context of at least two electric fields having different field direction change frequencies. A difference value is ascertained that represents a difference between the detected permittivity values. The difference value is compared with a reference value associated with the calibration suspension.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 15, 2023
    Assignee: HAMILTON BONADUZ AG
    Inventors: Marlene Frank, Philipp Arquint, Theo Gaupp
  • METHOD FOR CALIBRATING BIOMASS SENSORS OPERATING WITH IMPEDANCE SPECTROSCOPY AND USE OF A SUSPENSION FOR CARRYING OUT SUCH A METHOD
    Publication number: 20190079069
    Abstract: A method is provided for calibrating impedance-spectroscopic biomass sensors that are embodied to detect information regarding the quantity and/or size of living cells in a biomass by means of an electric field having a periodically changing field direction A calibration suspension encompasses an electrically conductive viscously flowable or viscoelastic carrier substance and electrically conductive solid particles and/or solid semiconductor particles received therein. An electric field is generated having a periodically changing field direction, which acts on the calibration suspension. At least one permittivity value is detected, respectively representing a permittivity of the calibration suspension, in a context of at least two electric fields having different field direction change frequencies. A difference value is ascertained that represents a difference between the detected permittivity values. The difference value is compared with a reference value associated with the calibration suspension.
    Type: Application
    Filed: March 1, 2017
    Publication date: March 14, 2019
    Applicant: Hamilton Bonaduz AG
    Inventors: Marlene Frank, Philipp Arquint, Theo Gaupp