Patents by Inventor Joseph Fitzpatrick

Joseph Fitzpatrick 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).

  • Using Variable Voltage and Current Rate of Change to Measure Particulate Matter Sensors
    Publication number: 20250180459
    Abstract: A method for analysis of a gas stream includes adjusting a voltage to a particulate matter sensor, the particulate matter sensor having an agglomeration of particulate matter. The method includes measuring a first rate of current change caused by adjusting the voltage, wherein the first rate of current change is proportional to the concentration of the agglomeration of particulate matter.
    Type: Application
    Filed: February 6, 2025
    Publication date: June 5, 2025
    Inventors: Joseph Fitzpatrick, Patrick Thompson
  • Using Variable Voltage and Current Rate of Change to Measure Particulate Matter Sensors
    Publication number: 20220099550
    Abstract: A method for analysis of a gas stream includes adjusting a voltage to a particulate matter sensor, the particulate matter sensor having an agglomeration of particulate matter. The method includes measuring a first rate of current change caused by adjusting the voltage, wherein the first rate of current change is proportional to the concentration of the agglomeration of particulate matter.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 31, 2022
    Inventors: Joseph Fitzpatrick, Patrick Thompson
  • Processing method for constraining lower melting point metals within ceramic laminates during sintering
    Patent number: 9724897
    Abstract: A method is described. The method is a method for making a constraining ceramic assembly. The method includes applying at least one metallic electrode to a substrate. The method also includes applying a porous ceramic layer to the substrate to cover the metallic electrode. The method also includes sintering the substrate, the porous ceramic layer, and the metallic electrode together at a sintering temperature above a melting point of the metallic electrode.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: August 8, 2017
    Assignee: EmiSense Technologies, LLC
    Inventors: Gangqiang Wang, Joseph Fitzpatrick, James John Steppan, Leta Yar-Li Woo, Brett Tamatea Henderson, Frank Bell
  • PROCESSING METHOD FOR CONSTRAINING LOWER MELTING POINT METALS WITHIN CERAMIC LAMINATES DURING SINTERING
    Publication number: 20160194252
    Abstract: A method is described. The method is a method for making a constraining ceramic assembly. The method includes applying at least one metallic electrode to a substrate. The method also includes applying a porous ceramic layer to the substrate to cover the metallic electrode. The method also includes sintering the substrate, the porous ceramic layer, and the metallic electrode together at a sintering temperature above a melting point of the metallic electrode.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 7, 2016
    Applicant: EMISENSE TECHNOLOGIES, LLC
    Inventors: Gangqiang Wang, Joseph Fitzpatrick, James John Steppan, Leta Yar-Li Woo, Brett Tamatea Henderson, Frank Bell