Patents by Inventor Graham Robert Drummond

Graham Robert Drummond 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: 20230365854
    Abstract: Copolymer additives for crude oils, crude oil mixtures of the copolymer additives and crude oils, and methods for producing or forming the crude oil mixtures are provided. The crude oil mixtures and methods comprise at least copolymer additive introduce or applied to crude oil, wherein the at least one copolymer additive comprises one or more copolymers of vinylpyrrolidone and one or more alpha-olefins.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 16, 2023
    Inventors: Christopher S. Daeffler, Graham Robert Drummond, Grady F. Parker III, Hema Rampersad
  • Patent number: 11549066
    Abstract: Citrate polyester additives for crude oils, mixtures of the citrate polyester additives and crude oils, and methods for producing or forming the mixtures are provided. The mixtures and methods comprise at least one citrate polyester additive introduce or applied to crude oil, wherein the at least one citrate polyester additive comprises one or more citrate crosspolymers.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: January 10, 2023
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventors: Christopher S. Daeffler, Graham Robert Drummond, Grady F. Parker, III, Hema Rampersad
  • Publication number: 20200181513
    Abstract: A method of treating petroleum fluids includes adding a wax inhibitor composition to the petroleum fluids, the wax inhibitor composition, including a wax inhibitor; a non-ionic surfactant or a cationic surfactant; and a co-solvent blend. A method of treating a petroleum fluid, includes adding a wax inhibitor composition to the petroleum fluid, the wax inhibitor composition including a wax inhibitor; an anionic surfactant selected from at least one of an isopropylamine dodecylsulfonic acid salt or an isopropylamine linear dodecylbenzene sulfonate; and a co-solvent blend.
    Type: Application
    Filed: June 27, 2018
    Publication date: June 11, 2020
    Inventors: Chandrashekhar Yeshwant Khandekar, Pradyumna Avinash Deshpande, Graham Robert Drummond, Loic Regnault de la Mothe, Lingling Li, James Frederic Gadberry, Tiara O'neal
  • Patent number: 10472469
    Abstract: Embodiments relate to fluid flow improvers containing a copolymer with a siloxane group incorporated thereto. The fluid flow improvers may include polymer/copolymer having the characteristic of inhibiting wax/paraffin crystalline growth, modifying wax/paraffin crystal growth, dispersing of wax/paraffin, preventing the deposition of wax/paraffin, aiding the removal of wax/paraffin or depressing of the pour point of a wax/paraffin-containing fluid. The fluid flow improvers described may be employed alone, or may be used in combination with one or more additives for improving the low temperature flowability and/or other properties and may also be employed in combination with one or more organic solvents and/or aqueous solvents.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: November 12, 2019
    Assignee: M-I L.L.C.
    Inventors: Graham Robert Drummond, Chandrashekhar Yeshwant Khandekar, Pradyumna Avinash Deshpande
  • Publication number: 20160185917
    Abstract: Embodiments relate to fluid flow improvers containing a copolymer with a siloxane group incorporated thereto. The fluid flow improvers may include polymer/copolymer having the characteristic of inhibiting wax/paraffin crystalline growth, modifying wax/paraffin crystal growth, dispersing of wax/paraffin, preventing the deposition of wax/paraffin, aiding the removal of wax/paraffin or depressing of the pour point of a wax/paraffin-containing fluid. The fluid flow improvers described may be employed alone, or may be used in combination with one or more additives for improving the low temperature flowability and/or other properties and may also be employed in combination with one or more organic solvents and/or aqueous solvents.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 30, 2016
    Inventors: Graham Robert Drummond, Chandrashekhar Yeshwant Khandekar, Pradyumna Avinash Deshpande