Patents by Inventor Jeffrey W. Frederick

Jeffrey W. Frederick 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).

  • Patent number: 5942197
    Abstract: A reactor is provided for reacting a liquid with a treat gas in the presence of a catalyst, the reactor comprising a continuous wall enclosing a first reaction zone, wherein the first reaction zone includes a catalyst for causing a desired reaction between the liquid and the treat gas; a liquid inlet above the first reaction zone for allowing a portion of the liquid to enter the reactor; a gas inlet below the first reaction zone for allowing a portion of the treat gas to enter the reactor; a liquid outlet below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet above the first reaction zone for allowing a portion of the treat gas to exit the reactor; and a gas bypass device in the first reaction zone for allowing a portion of the treat gas to bypass a portion of the first reaction zone, the gas bypass device including a gas bypass regulating device for regulating the amount of treat gas which bypasses the first reaction zone.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: August 24, 1999
    Assignee: Exxon Research and Engineering Co
    Inventors: Ramesh Gupta, Jeffrey W. Frederick, Edward S. Ellis, David C. Dankworth, Dimitrios M. Tsangaris
  • Patent number: 5939031
    Abstract: A reactor is provided for reacting a liquid with a treat gas in the presence of a catalyst, the reactor comprising a continuous wall enclosing a first reaction zone, wherein the first reaction zone includes a catalyst for causing a desired reaction between the liquid and the treat gas; a liquid inlet above the first reaction zone for allowing an unreacted portion of the liquid to enter the reactor; a gas inlet below the first reaction zone for allowing an unreacted portion of the treat gas to enter the reactor; a liquid outlet below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet above the first reaction zone for allowing a reacted portion of the treat gas to exit the reactor; and a liquid bypass device in the first reaction zone for allowing a portion of the liquid to bypass a portion of the first reaction zone, the liquid bypass device including a liquid bypass regulating device for regulating the amount of liquid which bypasses the first reaction zone.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: August 17, 1999
    Assignee: Exxon Research and Engineering Co.
    Inventors: Edward S. Ellis, Jeffrey W. Frederick, Ramesh Gupta, David C. Dankworth, Dimitrios M. Tsangaris
  • Patent number: 5859159
    Abstract: An improved process for the homopolymerization and copolymerization of .alpha.-olefins utilizing highly dilute .alpha.-olefin feedstreams to effect high conversions and catalyst efficiencies in the production of non-ethylene copolymers. The instant invention is particularly adaptable to polymerizing the .alpha.-olefin content of commercially available refinery feedstreams such as Raffinate-2.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: January 12, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Albert Rossi, Salvatore Rea, Jon E. Stanat, Linda K. Wright, Kenneth L. Kaufman, Jeffrey W. Frederick, Robert Martin Koros, Harold Wilbur Margo
  • Patent number: 5799877
    Abstract: A means and method for spraying liquid and gas onto and across a particulate bed includes a horizontal liquid distribution tray disposed over the bed containing a plurality of gas and liquid spray distributors extending through the tray. The distributors include separate gas and liquid conduits or pipes having an entrance on top and an exit below, with the exits proximate each other underneath the tray. The conduits are coaxial with a portion of the gas conduit surrounded by the liquid conduit to define an annular space between them for the liquid to flow downwardly through. The gas flows down through the gas conduit, exiting as a gas core surrounded by the downflowing liquid. The gas expands and contacts the surrounding liquid to spray it on the matter below. A liquid spray generating device is located below the gas and liquid exit. Siphon caps automatically provide pulse flow of the liquid.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: September 1, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Ramesh Gupta, Jeffrey W. Frederick
  • Patent number: 5498809
    Abstract: The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e.g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 12, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Albert Rossi, Salvatore Rea, Jeffrey W. Frederick, Mahn W. Kim
  • Patent number: 5025831
    Abstract: According to the present invention, there is provided a radial flow distributor comprising a cylindrical body portion having a vertical side wall, a top and a bottom. The cylindrical body portion has a horizontal baffle plate disposed within it, thereby dividing the body portion into a first compartment and a second compartment. The horizontally disposed baffle plate preferably is circular in shape and sufficiently large that it meets the side walls of the cylindrical body portion. The baffle also has a central opening in it. Conduit means, operably connected to the first compartment, are provided for introducing fluid to that compartment. A plurality of apertures are evenly spaced around the periphery of the side wall of the second compartment for distributing fluid from the distributor radially outwardly.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: June 25, 1991
    Assignee: Exxon Research & Engineering Company
    Inventors: Yiu Wah Wong, Jeffrey W. Frederick, Rutton D. Patel