Patents by Inventor Stefan Erik Janhunen

Stefan Erik Janhunen 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: 11680865
    Abstract: Examples of a leak detection system are disclosed. In one example according to aspects of the present disclosure, a leak detection system includes a housing defining an interior, the housing connected to a component of a water distribution system. The leak detection system also includes a leak detection sensor contained within the interior of the housing and configured to detect a leak within the water distribution system. Additionally, the leak detection system includes a digital signal processing circuit in communication with the leak detection sensor.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: June 20, 2023
    Assignee: Mueller International, LLC
    Inventors: Leo W. Fleury, Jr., Ganapathi Deva Varma Dintakurti, Werner Guenther Richarz, James O. Williams, Shabbir Yusuf, Timothy Scott Edward Hiller, Steven James Mercer, Stefan Erik Janhunen
  • Publication number: 20220082467
    Abstract: Examples of a leak detection system are disclosed. In one example according to aspects of the present disclosure, a leak detection system includes a housing defining an interior, the housing connected to a component of a water distribution system. The leak detection system also includes a leak detection sensor contained within the interior of the housing and configured to detect a leak within the water distribution system. Additionally, the leak detection system includes a digital signal processing circuit in communication with the leak detection sensor.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Leo W. Fleury, JR., Ganapathi Deva Varma Dintakurti, Werner Guenther Richarz, James O. Williams, Shabbir Yusuf, Timothy Scott Edward Hiller, Steven James Mercer, Stefan Erik Janhunen
  • Patent number: 10374444
    Abstract: A battery management system is provided that controls at least a stack of battery cells. The battery management system may detect stack voltage and current. Characteristics of each battery cell in the stack may be monitored. The battery management system may detect ground fault within the stack of battery cells. Communication breakdown and/or failure in the battery management system may also be detected.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: August 6, 2019
    Assignee: ELITE POWER INNOVATIONS, LLC.
    Inventors: Michael Alan Worry, John Ellis Corman, Stefan Erik Janhunen, Jonathan Thomas Malton, Nathanael Dimitro Wennyk
  • Publication number: 20180224349
    Abstract: Examples of a leak detection system are disclosed. In one example according to aspects of the present disclosure, a leak detection system includes a housing defining an interior, the housing connected to a component of a water distribution system. The leak detection system also includes a leak detection sensor contained within the interior of the housing and configured to detect a leak within the water distribution system. Additionally, the leak detection system includes a digital signal processing circuit in communication with the leak detection sensor.
    Type: Application
    Filed: March 29, 2018
    Publication date: August 9, 2018
    Inventors: Leo W. Fleury, JR., Ganapathi Deva Varma Dintakurti, Werner Guenther Richarz, James O. Williams, Shabbir Yusuf, Timothy Scott Edward Hiller, Steven James Mercer, Stefan Erik Janhunen
  • Publication number: 20160261127
    Abstract: A battery management system is provided that controls at least a stack of battery cells. The battery management system may detect stack voltage and current. Characteristics of each battery cell in the stack may be monitored. The battery management system may detect ground fault within the stack of battery cells. Communication breakdown and/or failure in the battery management system may also be detected.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Inventors: Michael Alan Worry, John Ellis Corman, Stefan Erik Janhunen, Jonathan Thomas Malton, Nathanael Dimitro Wennyk
  • Publication number: 20160226107
    Abstract: A battery management system is provided that controls at least a stack of battery cells. The battery management system may detect stack voltage and current. Characteristics of each battery cell in the stack may be monitored. The battery management system may detect ground fault within the stack of battery cells. Communication breakdown and/or failure in the battery management system may also be detected.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 4, 2016
    Inventors: Michael Alan Worry, John Ellis Corman, Stefan Erik Janhunen, Donghyun Shin, Jonathan Thomas Malton, Nathanael Dimitro Wennyk
  • Patent number: 9291520
    Abstract: A leak detection system includes a housing for installation within a hydrant; at least one leak detection sensor within the housing; and a transmitter circuit in communication with the at least one leak detection sensor for communicating leak detection data.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 22, 2016
    Assignee: Mueller International, LLC
    Inventors: Leo W. Fleury, Jr., Ganapathi Deva Varma Dintakurti, Werner Guenther Richarz, James O. Williams, Shabbir Yusuf, Timothy Scott Edward Hiller, Steven James Mercer, Stefan Erik Janhunen
  • Publication number: 20130049968
    Abstract: A leak detection system includes a housing for installation within a hydrant; at least one leak detection sensor within the housing; and a transmitter circuit in communication with the at least one leak detection sensor for communicating leak detection data.
    Type: Application
    Filed: June 8, 2012
    Publication date: February 28, 2013
    Applicant: MUELLER INTERNATIONAL, LLC
    Inventors: Leo W. Fleury, JR., Ganapathi Deva Varma Dintakurti, Werner Guenther Richarz, James O. Williams, Shabbir Yusuf, Timothy Scott Edward Hiller, Steven James Mercer, Stefan Erik Janhunen