Patents by Inventor Kekeli A. Ekoue-Kovi

Kekeli A. Ekoue-Kovi 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: 11981871
    Abstract: Green demulsifiers useful for demulsifying emulsions of water and crude oil are made by reacting together an alcohol, a multifunctional acid and/or anhydride, and a fatty acid, and optionally a polyol that is polyethylene glycol and/or polypropylene glycol. The green demulsifier has ester bonds between the reactant moieties. These ester bonds can hydrolyze which results in relatively high biodegradation.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: May 14, 2024
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Kekeli A. Ekoue-Kovi, Wojciech Jakubowski, Kui Xu, Xiaofeng Wang, Onome Ugono
  • Publication number: 20240132787
    Abstract: Non-acidic sulfur compounds (e.g., thiols) can be selectively extracted from a hydrocarbon stream containing them (e.g., crude oil) by contacting the hydrocarbon stream with a carbonate solvent that contains at least one organic carbonate (e.g., propylene carbonate) in an amount effective to selectively absorb and extract the non-acidic sulfur compounds therefrom. The carbonate solvent may optionally also comprise an additional solvent (e.g., caprolactam), a soluble metal salt (e.g., a metal salt where the metal is iron), and/or a mercaptan scavenger that is a heterocyclic amine (e.g., oxazolidine).
    Type: Application
    Filed: October 5, 2022
    Publication date: April 25, 2024
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Sankaran Murugesan, Jerry J. Weers, Sai Reddy Pinappu, Onome Ugono, Kekeli A. Ekoue-Kovi
  • Patent number: 11820938
    Abstract: Dispersants including at least one organic carbonate can keep deposits dispersed within hydrocarbons, where the solids are asphaltenes and derivatives from triazine-based H2S scavengers.
    Type: Grant
    Filed: July 31, 2022
    Date of Patent: November 21, 2023
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Onome Ugono, Sankaran Murugesan, Jerry J. Weers, Kekeli A. Ekoue-Kovi
  • Publication number: 20230348806
    Abstract: Reversion problems with heavy oils, such as heavy fuel oils, are mitigated by introducing an effective amount of an additive that contains both a phase change material and a pour point depressant, even synergistically mitigated.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Asha Patel, Kekeli A. Ekoue-Kovi, Sankaran Murugesan
  • Publication number: 20230166992
    Abstract: A method for selective extraction of lithium from geothermal brines using host-guest complexes of host molecules such as calixarene, dendrimeric polymers, hyper-branched polymers, and/or acid-catalyzed resins complexed with synergists such as organic acids, condensation polymers, olefin/maleic anhydride copolymers, and/or chelants.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Sankaran Murugesan, Mary Jane Legaspi Felipe, Jerry J. Weers, Onome Ugono, Kekeli A. Ekoue-Kovi, Sai Reddy Pinappu
  • Patent number: 11339118
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 24, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Patent number: 10703710
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 7, 2020
    Assignee: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Publication number: 20200207703
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Applicant: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Patent number: 10457817
    Abstract: The present invention generally relates to methods and compounds for preventing metal corrosion. More specifically, the method comprises contacting a hydrocarbon-containing liquid with a composition in an effective amount to prevent metal corrosion.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 29, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Kekeli Ekoue-Kovi, Neetu Tomar, Deepak Jadhav, Kim B. Peyton, Jennifer L. Sorrells, Ian Michael Jones
  • Publication number: 20190119197
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: December 18, 2018
    Publication date: April 25, 2019
    Applicant: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Patent number: 10196343
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 5, 2019
    Assignee: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Publication number: 20170335204
    Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of compositions comprising a surfactant and the reaction product between a polyamine and a formaldehyde as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon-containing fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, slurry oil, gas oil, resid, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from an industrial gas stream, or a sulfurization plant.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 23, 2017
    Inventors: Kekeli Ekoue-Kovi, Ian Michael Jones
  • Publication number: 20170313891
    Abstract: The present invention generally relates to methods and compounds for preventing metal corrosion. More specifically, the method comprises contacting a hydrocarbon-containing liquid with a composition in an effective amount to prevent metal corrosion.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 2, 2017
    Inventors: Kekeli Ekoue-Kovi, Neetu Tomar, Deepak Jadhav, Kim B. Peyton, Jennifer L. Sorrells, Ian Michael Jones
  • Publication number: 20170088505
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: November 8, 2016
    Publication date: March 30, 2017
    Applicant: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Patent number: 9523045
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 20, 2016
    Assignee: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi
  • Patent number: 9273254
    Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of amino acetal and ketal compounds as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from a sulfurization plant, or industrial gas streams.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 1, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Dennis R. Compton, Kekeli Ekoue-Kovi
  • Publication number: 20150175903
    Abstract: The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of amino acetal and ketal compounds as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon fluids, particularly for natural gas, crude oil, field oil, fuel oil, naphtha, gasoline, kerosene, diesel, refinery gas, coal gas, tar, asphalt, coke gas, ammonia synthesis gas, gas from a sulfurization plant, or industrial gas streams.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Applicant: Ecolab USA Inc.
    Inventors: Dennis R. Compton, Kekeli Ekoue-Kovi
  • Publication number: 20140209510
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Applicant: ECOLAB USA INC.
    Inventors: Ryan Matthew Harrington, Prakasa Rao Anantaneni, Lawrence J. Karas, Kekeli Ekoue-Kovi