Patents by Inventor Stephen Claude Leviness

Stephen Claude Leviness 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).

  • Process of removing heat
    Patent number: 11247953
    Abstract: The present invention provides an improved process for removing heat from an exothermic reaction. In particular, the present invention provides a process wherein heat can be removed from multiple reaction trains using a common coolant system.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Velocys Technologies Limited
    Inventors: Ivan Phillip Greager, Stephen Claude LeViness, Roger Allen Harris, Andre Peter Steynberg, Jasmeer Jaichland Ramlal, Dennis Parker, John Dolan
  • Process of Removing Heat
    Publication number: 20210070681
    Abstract: The present invention provides an improved process for removing heat from an exothermic reaction. In particular, the present invention provides a process wherein heat can be removed from multiple reaction trains using a common coolant system.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Inventors: Ivan Phillip GREAGER, Stephen Claude LeVINESS, Roger Allen HARRIS, Andre Peter STEYNBERG, Jasmeer Jaichland RAMLAL, Dennis PARKER, John DOLAN
  • Generation of hydrocarbon fuels having a reduced environmental impact
    Patent number: 9994763
    Abstract: The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation.
    Type: Grant
    Filed: June 12, 2016
    Date of Patent: June 12, 2018
    Assignee: Velocys, Inc.
    Inventors: Stephen Claude LeViness, Ivan Greager
  • Generation of Hydrocarbon Fuels Having a Reduced Environmental Impact
    Publication number: 20160289545
    Abstract: The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation.
    Type: Application
    Filed: June 12, 2016
    Publication date: October 6, 2016
    Applicant: Velocys Inc.
    Inventors: Stephen Claude LeViness, Ivan Greager
  • Generation of hydrocarbon fuels having a reduced environmental impact
    Patent number: 9365765
    Abstract: The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: June 14, 2016
    Assignee: Velocys, Inc.
    Inventors: Stephen Claude LeViness, Ivan Greager
  • Fischer-Tropsch process
    Patent number: 9359271
    Abstract: The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: June 7, 2016
    Assignee: Velocys, Inc.
    Inventors: Stephen Claude LeViness, Francis Daly, Laura Amanda Richard, Sreekala Rugmini
  • FISCHER-TROPSCH PROCESS
    Publication number: 20150210606
    Abstract: The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.
    Type: Application
    Filed: April 7, 2015
    Publication date: July 30, 2015
    Inventors: Stephen Claude LeViness, Francis Daly, Laura Amanda Richard, Sreekala Rugmini
  • Fischer-Tropsch process
    Patent number: 9006298
    Abstract: The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 14, 2015
    Assignee: Velocys, Inc.
    Inventors: Stephen Claude LeViness, Francis Daly, Laura Richard, Sreekala Rugmini
  • Generation of Hydrocarbon Fuels Having a Reduced Environmental Impact
    Publication number: 20140318794
    Abstract: The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 30, 2014
    Applicant: Velocys Inc.
    Inventors: Stephen Claude LeViness, Ivan Greager
  • FISCHER-TROPSCH PROCESS
    Publication number: 20140045954
    Abstract: The disclosed invention relates to a process for conducting a Fischer-Tropsch reaction, comprising flowing a reactant mixture comprising fresh synthesis gas and tail gas in a microchannel reactor in contact with a catalyst to form at least one hydrocarbon product, the catalyst being derived from a catalyst precursor comprising cobalt and a surface modified catalyst support.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 13, 2014
    Applicant: VELOCYS, INC.
    Inventors: Stephen Claude LeViness, Francis Daly, Laura Richard, Sreekala Rugmini
  • PROCESS FOR TREATING HEAVY OIL
    Publication number: 20110083997
    Abstract: This invention relates to a process for hydroprocessing heavy oil under process intensification conditions to form an upgraded hydrocarbon product.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 14, 2011
    Inventors: Laura J. Silva, Anna Lee Tonkovich, Stephen Claude LeViness, Kai Tod Paul Jarosch, Edward Rode
  • Multizone downcomer for slurry hydrocarbon synthesis process
    Patent number: 6270734
    Abstract: A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each having an open fluid conduit depending from an orifice in the bottom. The downcomer is useful in a slurry hydrocarbon synthesis process for forming a catalyst and gas reduced slurry which is passed to a liquid filter to remove hydrocarbon liquid from the slurry reactor.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: August 7, 2001
    Assignee: Exxon Research and Engineering Company
    Inventor: Stephen Claude Leviness
  • Multizone downcomer for slurry hydrocarbon syntheses process
    Patent number: 5962537
    Abstract: A downcomer for producing at least two slurries having different solids and gas concentrations from a single three phase slurry of particulate solids and gas bubbles in a slurry liquid has two or more concentric gas and solids disengaging zones, each having an open fluid conduit depending from an orifice in the bottom. The dowwncomer is useful in a slurry hydrocarbon synthesis process for forming a catalyst and gas reduced slurry which is passed to a liquid filter to remove hydrocarbon liquid from the slurry reactor.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: October 5, 1999
    Assignee: Exxon Research and Engineering Co
    Inventor: Stephen Claude Leviness