Patents by Inventor Ryan C. Hartley

Ryan C. Hartley 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).

  • Method and Apparatus for Steady State and Transient Generation of NO2 and NO for Use with Burner-Based Exhaust Replication Systems
    Publication number: 20220364956
    Abstract: This invention relates to exhaust replication systems and methods, such as systems for testing automotive exhaust aftertreatment devices. More particularly, methods for steady state and transient generation and flow of NO2 and/or NO from a fluid such as nitric acid for introduction into the burner-based exhaust replication system.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 17, 2022
    Inventors: Ryan C. HARTLEY, Robert T. HENDERSON, Cary A. HENRY
  • Stabilization of aqueous urea solutions containing organometallic catalyst precursors
    Patent number: 10774715
    Abstract: The present invention is directed at stabilization of aqueous urea solutions containing organometallic catalyst precursors. Stabilization can be achieved by monitoring and controlling the solution pH.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 15, 2020
    Assignee: Southwest Research Institute
    Inventors: Ryan C. Hartley, Cary A. Henry
  • Dosing method and apparatus for reductant urea solutions with catalyst precursors to assist selective catalytic reduction
    Patent number: 10378411
    Abstract: The present disclosure is directed at a dosing method and apparatus for treatment of reductant urea solutions with water soluble organometallic catalyst precursors which convert to active catalyst compounds in diesel exhaust gas systems. The active catalysts then promote hydrolysis of isocyanic acid into ammonia and/or decomposition of relatively high molecular weight deposits which deposits may otherwise reduce selective catalytic reduction efficiency.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 13, 2019
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Cary A. Henry, Ryan C. Hartley
  • Treatment of reductant urea solutions with catalyst precursors to assist selective catalytic reduction
    Patent number: 10267196
    Abstract: The present disclosure is directed at treatment of reductant urea solutions with water soluble organometallic catalyst precursors which convert to active catalyst compounds in diesel exhaust gas systems. The active catalysts then promote hydrolysis of isocyanic acid into ammonia and/or decomposition of relatively high molecular weight deposits which deposits may otherwise reduce selective catalytic reduction efficiency.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 23, 2019
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Ryan C. Hartley, Gordon J. J. Bartley