Patents by Inventor Joshua Lynn Ratts

Joshua Lynn Ratts 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).

  • Emissions module with adjustable sizing
    Patent number: 11156145
    Abstract: An emission module for treating exhaust gas including a housing, a first catalyst substrate positioned within the housing and having an inlet end, the first catalyst substrate defining a plurality of flow passages extending longitudinally from the inlet end, and a first restrictor plate positioned at the inlet end of the first catalyst substrate to block exhaust flow through a first portion of the plurality of flow passages while allowing exhaust flow through the remainder of the plurality of flow passages.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 26, 2021
    Assignee: Caterpillar Inc.
    Inventors: Wesley Gene Benson, Andrew M. Denis, Joshua Lynn Ratts, Jack Albert Merchant
  • EMISSIONS MODULE WITH ADJUSTABLE SIZING
    Publication number: 20210231043
    Abstract: An emission module for treating exhaust gas including a housing, a first catalyst substrate positioned within the housing and having an inlet end, the first catalyst substrate defining a plurality of flow passages extending longitudinally from the inlet end, and a first restrictor plate positioned at the inlet end of the first catalyst substrate to block exhaust flow through a first portion of the plurality of flow passages while allowing exhaust flow through the remainder of the plurality of flow passages.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 29, 2021
    Applicant: Caterpillar Inc.
    Inventors: Wesley Gene Benson, Andrew M. Denis, Joshua Lynn Ratts, Jack Albert Merchant
  • Thermal management lightoff assist systems and methods for regenerating oxidation catalyst in exhaust system
    Patent number: 11015502
    Abstract: A compression ignition internal combustion engine system includes an engine and an exhaust system with an upstream exhaust conduit, and an oxidation catalyst device (DOC). Systems and methods of desulfating the oxidation catalyst by the injection of a lightoff fluid to promote ignition of uncombusted fuel in the exhaust stream are disclosed.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventors: Joshua Lynn Ratts, Wilce Damion Williams
  • THERMAL MANAGEMENT LIGHTOFF ASSIST SYSTEMS AND METHODS FOR REGENERATING OXIDATION CATALYST IN EXHAUST SYSTEM
    Publication number: 20200332690
    Abstract: A compression ignition internal combustion engine system includes an engine and an exhaust system with an upstream exhaust conduit, and an oxidation catalyst device (DOC). Systems and methods of desulfating the oxidation catalyst by the injection of a lightoff fluid to promote ignition of uncombusted fuel in the exhaust stream are disclosed.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 22, 2020
    Applicant: Caterpillar Inc.
    Inventors: Joshua Lynn Ratts, Wilce Damion Williams