Patents by Inventor Robert George Shong

Robert George Shong 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).

  • Publication number: 20230257644
    Abstract: The present disclosure is directed to polyanionic surfactants, surfactant mixtures, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making polyanionic surfactants are also described.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 17, 2023
    Inventors: Gayani W. PINNAWALA, Sujeewa S. PALAYANGODA, Gregory A. WINSLOW, Varadarajan DWARAKANATH, Kerry Kennedy SPILKER, Robert George SHONG
  • Publication number: 20230183578
    Abstract: The present disclosure is directed to polyanionic surfactants, surfactant mixtures, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making polyanionic surfactants are also described.
    Type: Application
    Filed: April 26, 2021
    Publication date: June 15, 2023
    Inventors: Gayani W. PINNAWALA, Sujeewa S. PALAYANGODA, Gregory A. WINSLOW, Varadarajan DWARAKANATH, Kerry Kennedy SPILKER, Robert George SHONG
  • Publication number: 20220162499
    Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R1—R2—R3, wherein R1 includes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking R1 and R2; R2 includes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 includes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. R3 includes 2-12 carbon atoms.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Inventors: Robert George Shong, Varadarajab Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Patent number: 11248159
    Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R1-R2-R3, wherein R1 includes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking R1 and R2; R2 includes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 includes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. R3 includes 2-12 carbon atoms.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 15, 2022
    Assignee: Chevron U.S.A. INC.
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Publication number: 20190153299
    Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R1-R2-R3, wherein R1 includes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking R1 and R2; R2 includes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 includes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. R3 includes 2-12 carbon atoms.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Inventors: Robert George SHONG, Varadarajan DWARAKANATH, Gregory A. WINSLOW, Sophany THACH
  • Patent number: 10233382
    Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. A specific embodiment relates to the use of an aqueous stream including a compound having the chemical formula: R1—R2—R3, wherein R1 comprises a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having 7-150 carbon atoms; an oxygen atom linking R1 and R2; R2 comprises an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 comprises a branched or unbranched hydrocarbon chain comprising 2-12 carbon atoms and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 19, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Patent number: 9976072
    Abstract: The present disclosure generally relates to a multicarboxylate, such as an alkyl alkoxy dicarboxylate a method of making the multicarboxylate, and methods to use the multicarboxylate. A specific embodiment of the disclosure is a compound comprising the chemical formula: R1-R2-R3, wherein R1 comprises a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having 7-150 carbon atoms; an oxygen atom linking R1 and R2; R2 comprises an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 comprises a branched or unbranched hydrocarbon chain comprising 2-12 carbon atoms and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. The composition has a variety of uses but in some embodiments may be used in enhanced oil recovery processes.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 22, 2018
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Publication number: 20170198202
    Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. A specific embodiment relates to the use of an aqueous stream including a compound having the chemical formula: R1—R2—R3, wherein R1 comprises a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having 7-150 carbon atoms; an oxygen atom linking R1 and R2; R2 comprises an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 comprises a branched or unbranched hydrocarbon chain comprising 2-12 carbon atoms and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation.
    Type: Application
    Filed: March 28, 2017
    Publication date: July 13, 2017
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach
  • Publication number: 20150275068
    Abstract: The present disclosure generally relates to a multicarboxylate, such as an alkyl alkoxy dicarboxylate a method of making the multicarboxylate, and methods to use the multicarboxylate. A specific embodiment of the disclosure is a compound comprising the chemical formula: R1-R2-R3, wherein R1 comprises a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having 7-150 carbon atoms; an oxygen atom linking R1 and R2; R2 comprises an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 comprises a branched or unbranched hydrocarbon chain comprising 2-12 carbon atoms and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. The composition has a variety of uses but in some embodiments may be used in enhanced oil recovery processes.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Inventors: Robert George Shong, Varadarajan Dwarakanath, Gregory A. Winslow, Sophany Thach