Patents by Inventor Elizabeth Minhee Han

Elizabeth Minhee Han 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: 20230337891
    Abstract: Systems and/or methods for the monitoring and/or control of thermal sanitization in automated cleaning machines are described. A cleaning machine controller may predict a number of heat unit equivalents that will be delivered during a cleaning process based on a sump temperature difference (i.e., a change in the temperature of the cleaning solution in the sump) experienced at or near the beginning of the cleaning process. One or more cleaning process parameters may be adjusted and/or controlled based on the sump temperature difference in order to ensure that a target number of heat unit equivalents are delivered in order to achieve thermal sanitization of the wares subjected to the cleaning process.
    Type: Application
    Filed: April 26, 2023
    Publication date: October 26, 2023
    Inventors: Elizabeth Minhee Han, Conor Sylvester Smith, Paul R. Kraus, Paul Dominic Christian, Rachel Marie McGinness
  • Publication number: 20230218137
    Abstract: Image classification is used to dynamically control one or more wash parameters in an automated cleaning machine. An imaging device installed in the wash chamber of the cleaning machine captures one or more image(s) of articles to be cleaned at various times throughout a cleaning process. A computing device analyzes the captured image(s) to classify the images as to an article type and a rack volume. Based on the article type classification and the rack volume, the computing device dynamically controls one or more parameters of the cleaning process to achieve a satisfactory cleaning and/or sanitizing result.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Inventors: Conor Sylvester Smith, Paul Dominic Christian, Elizabeth Minhee Han, Paul R. Kraus, Rachel Marie McGinness
  • Patent number: 11666198
    Abstract: Systems and/or methods for the monitoring and/or control of thermal sanitization in automated cleaning machines are described. A cleaning machine controller may predict a number of heat unit equivalents that will be delivered during a cleaning process based on a sump temperature difference (i.e., a change in the temperature of the cleaning solution in the sump) experienced at or near the beginning of the cleaning process. One or more cleaning process parameters may be adjusted and/or controlled based on the sump temperature difference in order to ensure that a target number of heat unit equivalents are delivered in order to achieve thermal sanitization of the wares subjected to the cleaning process.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: June 6, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Elizabeth Minhee Han, Conor Sylvester Smith, Paul R. Kraus, Paul Dominic Christian, Rachel Marie McGinness
  • Patent number: 11627861
    Abstract: Image classification is used to dynamically control one or more wash parameters in an automated cleaning machine. An imaging device installed in the wash chamber of the cleaning machine captures one or more image(s) of articles to be cleaned at various times throughout a cleaning process. A computing device analyzes the captured image(s) to classify the images as to an article type and a rack volume. Based on the article type classification and the rack volume, the computing device dynamically controls one or more parameters of the cleaning process to achieve a satisfactory cleaning and/or sanitizing result.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 18, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Conor Sylvester Smith, Paul Dominic Christian, Elizabeth Minhee Han, Paul R. Kraus, Rachel Marie McGinness
  • Publication number: 20220104680
    Abstract: Systems and/or methods for the monitoring and/or control of thermal sanitization in automated cleaning machines are described. A cleaning machine controller may predict a number of heat unit equivalents that will be delivered during a cleaning process based on a sump temperature difference (i.e., a change in the temperature of the cleaning solution in the sump) experienced at or near the beginning of the cleaning process. One or more cleaning process parameters may be adjusted and/or controlled based on the sump temperature difference in order to ensure that a target number of heat unit equivalents are delivered in order to achieve thermal sanitization of the wares subjected to the cleaning process.
    Type: Application
    Filed: March 5, 2021
    Publication date: April 7, 2022
    Inventors: Elizabeth Minhee Han, Conor Sylvester Smith, Paul R. Kraus, Paul Dominic Christian, Rachel Marie McGinness
  • Publication number: 20210076898
    Abstract: Image classification is used to dynamically control one or more wash parameters in an automated cleaning machine. An imaging device installed in the wash chamber of the cleaning machine captures one or more image(s) of articles to be cleaned at various times throughout a cleaning process. A computing device analyzes the captured image(s) to classify the images as to an article type and a rack volume. Based on the article type classification and the rack volume, the computing device dynamically controls one or more parameters of the cleaning process to achieve a satisfactory cleaning and/or sanitizing result.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 18, 2021
    Inventors: Conor Sylvester Smith, Paul Dominic Christian, Elizabeth Minhee Han, Paul R. Kraus, Rachel Marie Rahn