Patents by Inventor William Joseph Tchir

William Joseph Tchir 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).

  • Reduction of fouling in high pressure reactors
    Patent number: 9663591
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 30, 2017
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • REDUCTION OF FOULING IN HIGH PRESSURE REACTORS
    Publication number: 20170029533
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 2, 2017
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • Reduction of fouling in high pressure reactors
    Patent number: 9499645
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: November 22, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • REDUCTION OF FOULING IN HIGH PRESSURE REACTORS
    Publication number: 20160070885
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Application
    Filed: October 28, 2015
    Publication date: March 10, 2016
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • REDUCTION OF FOULING IN HIGH PRESSURE REACTORS
    Publication number: 20160068617
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Application
    Filed: October 13, 2015
    Publication date: March 10, 2016
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • Reduction of fouling in high pressure reactors
    Patent number: 9202014
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: December 1, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • REDUCTION OF FOULING IN HIGH PRESSURE REACTORS
    Publication number: 20140155568
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Application
    Filed: November 13, 2013
    Publication date: June 5, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget