Patents by Inventor Richard Charles Dougherty

Richard Charles Dougherty 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: 10017705
    Abstract: This invention relates to a process involving hydrocracking and dewaxing of a feedstream in which a converted fraction can correspond to a majority of the product from the reaction system, while an unconverted fraction can exhibit improved properties. In this hydrocracking process, it can be advantageous for the yield of unconverted fraction for gasoline fuel application to be controlled to maintain desirable cold flow properties for the unconverted fraction. Catalysts and conditions can be chosen to assist in attaining, or to optimize, desirable product yields and/or properties.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 10, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Richard Charles Dougherty, William J. Novak, Stuart S. Shih, Stephen John McCarthy, Michel Daage
  • Publication number: 20160040083
    Abstract: This invention relates to a process involving hydrocracking and dewaxing of a feedstream in which a converted fraction can correspond to a majority of the product from the reaction system, while an unconverted fraction can exhibit improved properties. In this hydrocracking process, it can be advantageous for the yield of unconverted fraction for gasoline fuel application to be controlled to maintain desirable cold flow properties for the unconverted fraction. Catalysts and conditions can be chosen to assist in attaining, or to optimize, desirable product yields and/or properties.
    Type: Application
    Filed: October 21, 2015
    Publication date: February 11, 2016
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Richard Charles Dougherty, William J. Novak, Stuart S. Shih, Stephen John McCarthy, Michel Daage
  • Patent number: 9206363
    Abstract: Heavy oil feeds are hydroprocessed in the presence of a solvent under conditions that provide a variety of benefits. The solvent can be an added solvent or a portion of the liquid effluent from hydroprocessing. The processes allow for lower pressure processing of heavy oil feeds for extended processing times or extended catalyst lifetimes be reducing or mitigating the amount of coke formation on the hydroprocessing catalyst.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: December 8, 2015
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Hyung Suk Woo, Jane Chi-ya Cheng, Teh C. Ho, Stephen Harold Brown, Richard Charles Dougherty, David Thomas Ferrughelli, Federico Barrai
  • Publication number: 20130161237
    Abstract: Heavy oil feeds are hydroprocessed in the presence of a solvent under conditions that provide a variety of benefits. The solvent can be an added solvent or a portion of the liquid effluent from hydroprocessing. The processes allow for lower pressure processing of heavy oil feeds for extended processing times or extended catalyst lifetimes be reducing or mitigating the amount of coke formation on the hydroprocessing catalyst.
    Type: Application
    Filed: August 29, 2012
    Publication date: June 27, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Hyung Suk Woo, Jane Chi-ya Cheng, Teh C. Ho, Stephen Harold Brown, Richard Charles Dougherty, David Thomas Ferrughelli, Federico Barrai
  • Publication number: 20120000818
    Abstract: A process for the preparation of Group II and Group III lube oil base stocks wherein liquid-continuous aromatics saturation is used to treat lube hydrocrackate. The treated hydrocrackate is then be sent to dewaxing unit and then optionally to a hydrotreating step.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Richard Charles Dougherty, Michel Daage
  • Publication number: 20120000829
    Abstract: The preparation of Group II and Group III lube base oils wherein liquid-continuous hydrotreating is used to treat a lube oil raffinate. The hydrotreated lube oil raffinate is then sent to a dewaxing stage that can be either a solvent or catalytic dewaxing stage.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Richard Charles Dougherty, Michel Daage
  • Publication number: 20040121933
    Abstract: The present invention relates to a process for preparing polymeric additives from dry polymer granules having increased bulk density, larger mean particle size with a small distribution of fines and lower hygroscopicity.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 24, 2004
    Inventor: Richard Charles Dougherty
  • Publication number: 20040121934
    Abstract: The present invention relates to a process for preparing polymeric detergent additives from dry neutralized polymer granules having increased bulk density, larger mean particle size with a small distribution of fines and lower hygroscopicity.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 24, 2004
    Inventor: Richard Charles Dougherty