Patents by Inventor Fenglou Zou

Fenglou Zou 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).

  • Multiple functional wellbore fluid additive
    Patent number: 11643588
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for use with wellbore treatment processes. In one embodiment, a composition is provided comprising a cementitious material, a drilling fluid, or combinations thereof, and an additive composition comprising one or more components selected from the group of an aqueous insoluble lignin, a coke fine, a random tetracopolymer having the formula styrene-butadiene-acrylic-fumaric acid, a polyvinyl acetate, a surfactant composition, and combinations thereof.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: May 9, 2023
    Assignee: HEXION INC.
    Inventors: Li Jiang, Jan Beetge, Fenglou Zou
  • Derivatisation of carbon
    Patent number: 10407379
    Abstract: A molecular species is covalently attached to elemental carbon by exposing the carbon to a reaction mixture containing a strong base and a compound of the formula or in which X denotes a covalently attached atom or group capable of forming an X? anion and each Z is a moiety comprising a plurality of atoms, but which does not have a hydrogen atom directly attached to the atom which itself is directly attached to the —CH2X or —CHX group. The carbon substrate may be graphite or carbon nanotubes.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: September 10, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Fenglou Zou, Nathan Lawrence, Timothy Jones
  • MULTIPLE FUNCTIONAL WELLBORE FLUID ADDITIVE
    Publication number: 20190169484
    Abstract: The embodiments described herein generally relate to methods and chemical compositions for use with wellbore treatment processes. In one embodiment, a composition is provided comprising a cementitious material, a drilling fluid, or combinations thereof, and an additive composition comprising one or more components selected from the group of an aqueous insoluble lignin, a coke fine, a random tetracopolymer having the formula styrene-butadiene-acrylic-fumaric, a polyvinyl acetate, a surfactant composition, and combinations thereof.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 6, 2019
    Inventors: Li JIANG, Jan Beetge, Fenglou Zou
  • Derivatisation of carbon
    Patent number: 9630851
    Abstract: A molecular species is covalently attached to elemental carbon by exposing the carbon to a reaction mixture containing a strong base and a compound of the formula (I) or (II) in which X denotes a covalently attached atom or group capable of forming an X? anion and each Z is a moiety comprising a plurality of atoms, but which does not have a hydrogen atom directly attached to the atom which itself is directly attached to the —CH2X or —CHX group. The carbon substrate may be graphite or carbon nanotubes.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 25, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Fenglou Zou, Nathan Lawrence, Timothy Jones
  • DERIVATISATION OF CARBON
    Publication number: 20150197481
    Abstract: A molecular species is covalently attached to elemental carbon by exposing the carbon to a reaction mixture containing a strong base and a compound of the formula or in which X denotes a covalently attached atom or group capable of forming an X? anion and each Z is a moiety comprising a plurality of atoms, but which does not have a hydrogen atom directly attached to the atom which itself is directly attached to the —CH2X or —CHX group. The carbon substrate may be graphite or carbon nanotubes.
    Type: Application
    Filed: March 23, 2015
    Publication date: July 16, 2015
    Inventors: Fenglou Zou, Nathan Lawrence, Timothy Jones
  • Catalytic hydrogenation
    Patent number: 8242318
    Abstract: Catalytic hydrogenation of a double bond, notably a C?C or C?N double bond, is carried out using a homogenous catalyst which is a complex of rhodium or other transition metal containing at least one ligand which is a nitrogenous organic base. Preferably the complex is phosphorus-free and the ligand is a bicyclic base having formula where R1 and R4 are hydrocarbon chains. R1 preferably is a saturated chain of two carbon atoms and R4 preferably is a saturated chain of three to five carbon atoms.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: August 14, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Li Jiang, Timothy Jones, Fenglou Zou
  • DERIVATISATION OF CARBON
    Publication number: 20120059198
    Abstract: A molecular species is covalently attached to elemental carbon by exposing the carbon to a reaction mixture containing a strong base and a compound of the formula (I) or (II) in which X denotes a covalently attached atom or group capable of forming an X? anion and each Z is a moiety comprising a plurality of atoms, but which does not have a hydrogen atom directly attached to the atom which itself is directly attached to the —CH2X or —CHX group. The carbon substrate may be graphite or carbon nanotubes.
    Type: Application
    Filed: February 12, 2010
    Publication date: March 8, 2012
    Applicant: Schlumberger Technology Corporation
    Inventors: Fenglou Zou, Nathan lawrence, Timothy Jones
  • CATALYTIC HYDROGENATION
    Publication number: 20100168454
    Abstract: Catalytic hydrogenation of a double bond, notably a C?C or C?N double bond, is carried out using a homogenous catalyst which is a complex of rhodium or other transition metal containing at least one ligand which is a nitrogenous organic base. Preferably the complex is phosphorus-free and the ligand is a bicyclic base having formula where R1 and R4 are hydrocarbon chains. R1 preferably is a saturated chain of two carbon atoms and R4 preferably is a saturated chain of three to five carbon atoms.
    Type: Application
    Filed: December 3, 2009
    Publication date: July 1, 2010
    Applicant: Schlumberger Technology Corporation
    Inventors: Li Jiang, Timothy Jones, Fenglou Zou