Patents by Inventor Richard Harry Ernst

Richard Harry Ernst 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).

  • Catalytic stripping for mercaptan removal (ECB-0004)
    Patent number: 6736962
    Abstract: A process for reducing the amount of mercaptan sulfur in a petroleum stream without significantly changing its octane value. The process comprising a three-phase system wherein the petroleum stream to be treated is passed through a fixed bed of catalyst in the presence of a stripping gas. The stripping gas can be either hydrogen containing gas or an method wherein the composition of the catalyst utilized varies according to the stripping gas.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 18, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Bruce Randall Cook, Robert Charles Welch, Richard Harry Ernst, William Edward Winter, Jr., Richard Alan Demmin, Charles Alfred Euker, Jr.
  • Caustic extraction of mercaptans (LAW966)
    Patent number: 6352640
    Abstract: The invention describes a method for preparing a low sulfur motor gasoline utilizing ethanol and caustic extraction.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: March 5, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Bruce Randall Cook, Richard Harry Ernst, Mark Alan Greaney