Patents by Inventor Cesar E. Meza

Cesar E. Meza 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: 11111431
    Abstract: Disclosed is a composition and use thereof for the recovery of hydrocarbon fluids from a subterranean reservoir. More particularly, this invention concerns sulfonated epoxy resin polymers comprising an epoxide-containing compound, a primary amino sulfonate, and optionally one or more of a primary monoamine alkylene oxide oligomer, that modify the permeability of subterranean formations and increase the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: September 7, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Stephen M. Hoyles, Sayeed Abbas, Robert E. Hefner, Jr., Shawn J. Maynard, Cesar E. Meza
  • Publication number: 20190330522
    Abstract: Disclosed is a composition and use thereof for the recovery of hydrocarbon fluids from a subterranean reservoir. More particularly, this invention concerns sulfonated epoxy resin polymers comprising an epoxide-containing compound, a primary amino sulfonate, and optionally one or more of a primary monoamine alkylene oxide oligomer, that modify the permeability of subterranean formations and increase the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 31, 2019
    Inventors: Stephen M. Hoyles, Sayeed Abbas, Robert E. Hefner, Shawn J. Maynard, Cesar E. Meza
  • Publication number: 20190194525
    Abstract: Disclosed is a composition and use thereof for the recovery of hydrocarbon fluids from a subterranean reservoir. More particularly, this invention concerns sulfonated epoxy resin polymers comprising an epoxide-containing compound, a primary amino sulfonate, and optionally one or more of a primary monoamine alkylene oxide oligomer, that modify the permeability of subterranean formations and increase the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Application
    Filed: June 7, 2017
    Publication date: June 27, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Robert HEFNER, JR., Sayeed ABBAS, Stephen M. HOYLES, Shawn J. MAYNARD, Cesar E. MEZA
  • Patent number: 9498762
    Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: November 22, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Philip J. Carlberg, Hannah L. Crampton, Anna Forlin, Esteban Pedernera, Cesar E. Meza
  • Patent number: 8980780
    Abstract: A process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: March 17, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Hannah L. Crampton, Philip J. Carlberg, Cesar E. Meza
  • Patent number: 8927744
    Abstract: Embodiments of the present disclosure provide processes and systems for the epoxidation of an olefin using a fixed bed reactor. The fixed bed reactor is maintained at a temperature from 0 to 40 degrees Celsius. The processes and systems regulate a superficial liquid velocity of a non-homogeneous reaction mixture and recycled portion of effluent of the fixed bed reactor.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: January 6, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Cesar E. Meza, Philip J. Carlberg, Hannah L. Crampton
  • Publication number: 20140309441
    Abstract: Embodiments of the present disclosure provide processes and systems for the epoxidation of an olefin using a fixed bed reactor. The fixed bed reactor is maintained at a temperature from 0 to 40 degrees Celsius. The processes and systems regulate a superficial liquid velocity of a non-homogeneous reaction mixture and recycled portion of effluent of the fixed bed reactor.
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Cesar E. Meza, Philip J. Carlberg, Hannah L. Crampton
  • Publication number: 20130309152
    Abstract: Embodiments of the present disclosure include a process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent.
    Type: Application
    Filed: February 3, 2012
    Publication date: November 21, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Hannah L. Crampton, Philip J. Carlberg, Cesar E. Meza
  • Publication number: 20130302216
    Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.
    Type: Application
    Filed: February 3, 2012
    Publication date: November 14, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Philip J. Carlberg, Hannah L. Crampton, Anna Forlin, Esteban Pedernera, Cesar E. Meza