Patents Examined by Prem G Singh
  • Patent number: 11198830
    Abstract: The invention provides a grease composition, being a grease composition containing a base oil and, as a thickener a calcium complex soap, and being a grease composition using for the carboxylic acids forming the aforementioned calcium complex soap substituted or unsubstituted C18-22 straight-chain higher fatty acids, aromatic monocarboxylic aromatic acids having substituted or unsubstituted benzene rings and C2-4 straight-chain saturated lower fatty acids, wherein the aforementioned substituted or unsubstituted C18-22 straight-chain higher fatty acids include behenic acid and the amount of behenic acid used, as a mass ratio in terms of the total amount of the aforementioned substituted or unsubstituted C18-22 straight-chain higher fatty acids used, is from 25 mass % up to 70 mass %.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: December 14, 2021
    Assignee: SHELL OIL COMPANY
    Inventors: Keiji Tanaka, Kazuya Watanabe
  • Patent number: 11173419
    Abstract: A crude oil desalter unit includes a settler, an inlet manifold fluidly coupled to the settler, and one or more inlet distributors extending from the inlet manifold to discharge a water-in-oil emulsion into the settler. Each inlet distributor includes a riser having a first end, a second end, and an inner flowpath extending between the first and second ends, wherein the riser is coupled to the inlet manifold at the first end, one or more outlet nozzles provided at the second end and in fluid communication with the inner flowpath, and a static mixer positioned within the inner flowpath and defining one or more helical pathways operable to induce rotational flow to a fluid flowing within the inner flowpath.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: November 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Sandipan K. Das, Andrew P. Sullivan, Magaly C. Barroeta
  • Patent number: 11167258
    Abstract: In an FCC apparatus and process structured packing should be located at the very top of the stripping section in an upper region. The lower region below the structural packing may be equipped with fluidization equipment such as stripping media distributors and one or more gratings. This arrangement enables stripping of entrained hydrocarbons off the incoming catalyst immediately upon entry into the stripping section allowing the entrained hydrocarbon to exit the stripping section with minimized residence time to minimize post-riser cracking. Revamp of stripping sections with tall stripping sections should conducted in this way to improve performance and reduce down-time for equipment installation.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: November 9, 2021
    Assignee: UOP LLC
    Inventor: Sathit Kulprathipanja
  • Patent number: 11111454
    Abstract: The invention provides a lubricant formulation comprising: (a) a base oil selected from API Group I to V oils and mixtures thereof; (b) 0.01 to 10 wt % on the basis of the total weight of the lubricant formulation of a friction modifier additive; and (c) other lubricant formulation additives. The friction modifier additive has a hydroxyl value in the range from 10 to 300 mg KOH/g and is the reaction product of reactants comprising: i) a dimer fatty acid; ii) a polyol; iii) optionally, a C2 to C12 dicarboxylic acid or diol; and iv) optionally, a C1 to C10 mono-carboxylic acid or mono-alcohol. The invention also provides a method of lubricating an internal combustion engine comprising a crankcase and a wet clutch and the use of a friction modifier additive.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 7, 2021
    Assignee: Croda International PLC
    Inventors: David Anthony James Gillespie, John Eastwood, Gareth Moody, Aitziber Viadas Cienfuegos
  • Patent number: 11091706
    Abstract: A two-stage hydrocracking process for preferentially making a high-quality middle distillate product such as diesel from a relatively light hydrocarbon feedstock such as light vacuum gas oil.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: August 17, 2021
    Inventor: Michael Chiun-Kuei Hu
  • Patent number: 11072758
    Abstract: The invention provides a lubricant composition comprising an oil of lubricating viscosity and a protic acid salt of an N-hydrocarbyl-substituted gamma-(?-) or delta-amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 27, 2021
    Assignee: Lubrizol Corporation
    Inventors: Daniel J. Saccomando, William R. S. Barton, Ewan E. Delbridge, Patrick E. Mosier