Patents by Inventor Joshua W. Griffis

Joshua W. Griffis 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).

  • Reduced volume electrochlorination cells and methods of manufacturing same
    Patent number: 11384441
    Abstract: An electrochemical cell includes a housing having an inlet, an outlet, and a central axis and an anode-cathode pair disposed concentrically within the housing about the central axis and defining an active area between an anode and a cathode of the anode-cathode pair. An active surface area of at least one of the anode and the cathode has a surface area greater than a surface area of an internal surface of the housing. The anode-cathode pair is configured and arranged to direct all fluid passing through the electrochemical cell axially through the active area.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 12, 2022
    Assignee: Evoqua Water Technologies LLC
    Inventors: Paul Beddoes, Li-Shiang Liang, Andrew Green, Jacob Telepciak, Joshua W. Griffis, Simon P. Dukes
  • Reduced volume electrochlorination cells and methods of manufacturing same
    Patent number: 10808327
    Abstract: An electrochemical cell includes a cathode and an anode disposed in a housing. Each of the cathode and anode portions extending radially outward from a region proximate a central axis of the housing. A surface area of an active surface of the anode is greater than a surface area of an internal surface of the housing. A surface area of an active surface of the cathode is greater than a surface area of an internal surface of the housing.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: October 20, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventors: Joshua W. Griffis, Li-Shiang Liang, Paul Beddoes, Andrew Green, Simon P. Dukes, Jacob Telepciak
  • Reduced Volume Electrochlorination Cells and Methods of Manufacturing Same
    Publication number: 20200318246
    Abstract: An electrochemical cell includes a housing having an inlet, an outlet, and a central axis and an anode-cathode pair disposed concentrically within the housing about the central axis and defining an active area between an anode and a cathode of the anode-cathode pair. An active surface area of at least one of the anode and the cathode has a surface area greater than a surface area of an internal surface of the housing. The anode-cathode pair is configured and arranged to direct all fluid passing through the electrochemical cell axially through the active area.
    Type: Application
    Filed: December 23, 2019
    Publication date: October 8, 2020
    Applicant: Evoqua Water Technologies LLC
    Inventors: Paul Beddoes, Li-Shiang Liang, Andrew Green, Jacob Telepciak, Joshua W. Griffis, Simon P. Dukes
  • Reduced volume electrochlorination cells and methods of manufacturing same
    Patent number: 10513786
    Abstract: An electrochemical cell includes a housing having an inlet, an outlet, and a central axis and an anode-cathode pair disposed concentrically within the housing about the central axis and defining an active area between an anode and a cathode of the anode-cathode pair. An active surface area of at least one of the anode and the cathode has a surface area greater than a surface area of an internal surface of the housing. The anode-cathode pair is configured and arranged to direct all fluid passing through the electrochemical cell axially through the active area.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 24, 2019
    Assignee: Evoqua Water Technologies LLC
    Inventors: Paul Beddoes, Li-Shiang Liang, Andrew Green, Jacob Telepciak, Joshua W. Griffis, Simon P. Dukes
  • Reduced Volume Electrochlorination Cells And Methods Of Manufacturing Same
    Publication number: 20180119295
    Abstract: An electrochemical cell includes a cathode and an anode disposed in a housing. Each of the cathode and anode portions extending radially outward from a region proximate a central axis of the housing. A surface area of an active surface of the anode is greater than a surface area of an internal surface of the housing. A surface area of an active surface of the cathode is greater than a surface area of an internal surface of the housing.
    Type: Application
    Filed: February 17, 2016
    Publication date: May 3, 2018
    Applicant: Evoqua Water Technologies LLC
    Inventors: Joshua W. Griffis, Li-Shiang Liang, Paul Beddoes, Andrew Green, Simon P. Dukes, Jacob Telepciak
  • Reduced Volume Electrochlorination Cells and Methods of Manufacturing Same
    Publication number: 20180030603
    Abstract: An electrochemical cell includes a housing having an inlet, an outlet, and a central axis and an anode-cathode pair disposed concentrically within the housing about the central axis and defining an active area between an anode and a cathode of the anode-cathode pair. An active surface area of at least one of the anode and the cathode has a surface area greater than a surface area of an internal surface of the housing. The anode-cathode pair is configured and arranged to direct all fluid passing through the electrochemical cell axially through the active area.
    Type: Application
    Filed: February 17, 2016
    Publication date: February 1, 2018
    Inventors: Paul Beddoes, Li-Shiang Liang, Andrew Green, Jacob Telepciak, Joshua W. Griffis, Simon P. Dukes
  • Device for stretching a polymer in a fluid sample
    Patent number: 9028776
    Abstract: The invention provides structures and methods that allow polymers of any length, including nucleic acids, to be stretched into a long, linear conformation for further analysis.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: May 12, 2015
    Assignee: Toxic Report LLC
    Inventors: Robert H. Meltzer, Joshua W. Griffis
  • Intercalation methods and devices
    Patent number: 8956815
    Abstract: The invention provides devices and methods for improving labeling of nucleic acids including intercalation of nucleic acids using for example mono intercalators such as mono cyanine intercalators.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 17, 2015
    Assignee: Toxic Report LLC
    Inventors: Robert H. Meltzer, Joshua W. Griffis