Patents Examined by Prem C. Singh
  • Patent number: 11518953
    Abstract: A lithium-based grease and the preparation method thereof are provided. The raw materials for preparing the lithium-based grease include in parts by weight: 75-88 parts of base oil, 0.5-2.5 parts of antiwear agent, 0.1-1.5 parts of antirust agent, 0.1-1.5 parts of antioxidant, 5-25 parts of lubricant, 5-15 parts of thickening agent, and 0.6-2.0 parts of saponifying agent. The raw materials also include hydroxyl compound-containing modified graphene containing quaternary ammonium salt or aromatic ring. The grease has good colloid stability and mechanical stability, can greatly improve the antiwear property. More than that, the grease has excellent oxidation resistance, and can significantly shorten the reaction time of the saponification, reduce the reaction temperature of the saponification.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: December 6, 2022
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Bo Lin, Jinqiong Luo, Hao Liang, Li Zhang, Mingzhi Lin, Guoqing Hou
  • Patent number: 11518954
    Abstract: The invention is directed to a zinc-free lubricating composition for an internal combustion engine containing a phosphorus anti-wear agent, an ashless antioxidant, and a metal-free basic detergent. The lubricating composition provides wear protection, deposit control, and improved acid control with reduced levels of metal-containing additives.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: December 6, 2022
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, Patrick E. Mosier
  • Patent number: 11518947
    Abstract: The present disclosure generally relates to dispersions useful for scavenging hydrogen sulfide. The dispersions may be anhydrous and contain a solvent and a hydrogen sulfide scavenging compound. The hydrogen sulfide scavenging compound may be hexamine, for example. The solvent may be a C2-8 polyol, such as glycerin.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: December 6, 2022
    Assignee: ECOLAB USA Inc.
    Inventor: Kim R. Solomon
  • Patent number: 11504699
    Abstract: A method of making a hydrodesulfurization catalyst having nickel and molybdenum sulfides deposited on a support material containing mesoporous silica that is optionally modified with zirconium. The method of making the hydrodesulfurization catalyst involves a single-step calcination and reduction procedure. The utilization of the hydrodesulfurization catalyst in treating a hydrocarbon feedstock containing sulfur compounds (e.g. dibenzothiophene, 4,6-dimethyldibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 22, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Khalid R. Alhooshani, Saheed Adewale Ganiyu
  • Patent number: 11499108
    Abstract: Disclosed herein are scavenging and antifouling 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 compositions as scavengers and antifoulants, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 15, 2022
    Assignee: ChampionX USA Inc.
    Inventors: Lawrence J. Karas, Matthew Aaron Trevino, Kellen Harkness, Jeffrey Robert Eveland
  • Patent number: 11499118
    Abstract: An industrial fluid additive composition comprises one or more sequestering agents one or more compounds of formula (A): (A) wherein R1 and R2 are independently selected from substituted hydrocarbyl moieties containing from 1 to 10 carbon atoms or unsubstituted hydrocarbyl moieties containing from 1 to 10 carbon atoms.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: November 15, 2022
    Assignee: CASTROL LIMITED
    Inventor: Thomas Peter Hardt
  • Patent number: 11499117
    Abstract: A lubricating composition comprising a base oil and one or more additives, wherein the composition has: a sulphated ash content (according to ASTM D 874) of at least 0.4 wt % and at most 1.0 wt. %, by weight of the lubricating composition; a total base number (TBN) value (according to ASTM D 2896) of at least 4.0 mg KOH/g and at most 12 mg KOH/g; a total aromatics content contributed by the base oil in the range from 1 wt % to 30 wt %, by weight of the lubricating composition; and a sulphur content contributed by the base oil of 0.4 wt % or less, by weight of the lubricating composition; and wherein the base oil comprises a blend of (i) a first base oil which is a mineral base oil selected from an API Group I mineral base oil and an API Group II mineral base oil, and mixtures thereof, and (ii) a second base oil selected from an API Group II base oil and an API Group III base oil, preferably wherein the first base oil belongs to a different API group to that of the second base oil.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: November 15, 2022
    Assignee: SHELL USA, INC.
    Inventors: Jose Luis Garcia, Seung Min Yeo, Jörg Reher
  • Patent number: 11492258
    Abstract: An object of the present invention is to provide a method for producing a bis(fluorosulfonyl)amide alkali metal salt powder having high purity while suppressing reduction in yield due to thermal decomposition, etc. The method for producing a bis(fluorosulfonyl)amide alkali metal salt powder according to the present invention comprises precipitating a bis(fluorosulfonyl)amide alkali metal salt by conducting distillation using a thin-film evaporator while adding a poor solvent for the bis(fluorosulfonyl)amide alkali metal salt such as an aromatic hydrocarbon solvent and a linear or branched aliphatic hydrocarbon solvent to a solution formed by dissolving the bis(fluorosulfonyl)amide alkali metal salt in a good solvent for the bis(fluorosulfonyl)amide alkali metal salt such as an ester solvent and nitrile solvent.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 8, 2022
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Kenichi Hayashi, Hiroyuki Nishijima, Masahiro Hori, Toshiaki Nishizawa, Asami Kohori
  • Patent number: 11485926
    Abstract: The present invention provides a refrigerating machine oil comprising a lubricating base oil and at least one selected from the group consisting of an amine salt of phosphonic acid and an amine salt of phosphonic acid monoester, and a method for producing the same.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 1, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Yuya Mizutani, Hidetoshi Ogata
  • Patent number: 11485918
    Abstract: Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into light and heavy fractions utilizing convection heat from heaters used in steam cracking. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize either an ebullated bed reactor with extrudate catalysts or a slurry hydrocracking reactor using a homogeneous catalyst system, such as a molybdenum based catalysts which may optionally be promoted with nickel. Products from the upgrading operations can be finished olefins and/or aromatics, or, for heavier products from the upgrading operations, may be used as feed to the steam cracker.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: November 1, 2022
    Assignee: LUMMUS TECHNOLOGY LLC
    Inventors: Ujjal K. Mukherjee, Kandasamy Sundaram
  • Patent number: 11479729
    Abstract: A method of upgrading a petroleum feedstock, the method comprising the steps of introducing a disulfide oil, a water feed, and a petroleum feedstock to a supercritical water upgrading unit, and operating the supercritical water upgrading unit to produce a product gas stream, a product oil stream, and a used water stream.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: October 25, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Ki-Hyouk Choi, Emad N. Shafei, Mohammed Zuhair Albahar, Abdulaziz A. Ghabbani
  • Patent number: 11479625
    Abstract: In some embodiments, ethylene-propylene branched copolymers are synthesized with pyridyldiamido catalysts and a chain transfer agent, and their performance as viscosity modifiers in oil are detailed. In some embodiments, the present disclosure provides for ethylene-propylene branched copolymers having a shear thinning onset of less than about 0.01 rad/s and an HTHS value of less than about 3.3. In some embodiments, the ethylene-propylene branched copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 25, 2022
    Assignee: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Jingwen Zhang, John R. Hagadorn, Jo Ann M. Canich, Peijun Jiang, Britni J. Brobey, Maksim Shivokhin
  • Patent number: 11473856
    Abstract: A heat exchanger having a heat transfer surface provided with hyperthermophilic bacteria. The hyperthermophilic bacteria can be from the genera Archaea. The hyperthermophilic bacteria can further be from the genus Sulfolobus, and the hyperthermophilic bacteria can further be from the species Sulfolobus solfataricus. The heat exchanger can be adapted to pool-boiling heat transfer.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: October 18, 2022
    Assignee: SABANCI UNIVERSITESI
    Inventors: Ali Kosar, Devrim Gozuacik, Abdolali Khalili Sadaghiani, Yunus Akkoc, Ahmad Reza Motezakker
  • Patent number: 11466220
    Abstract: Described is a novel process for fractionating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction and water-soluble organics in an economical and energy efficient manner. Using the concepts of solvents and anti-solvent behaviours to separate the pyrolysis oil, which is an emulsion, a method utilising minimal quantities of solvents and water is proposed, By comparison with the existing methods to isolate the hydrophobic aromatic fraction, there is a volume reduction of greater than 50:1. Additionally, there is a significant time saving over the 24 hours for the accepted method as a solvent, and the anti-solvent system is spontaneous.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 11, 2022
    Assignee: ALDER ENERGY, LLC
    Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Javier Gonzalez Catalan, Zhiheng Wu, Patricia Lapuente, Jose Antonio Medrano Catalan
  • Patent number: 11466225
    Abstract: The invention relates to a lubricating oil composition and a refrigerant composition containing a polyalkylene glycol having a terpenoid end group, such as a farnesol end group.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 11, 2022
    Assignee: SHRIEVE CHEMICAL PRODUCTS, INC.
    Inventors: Elizabeth Dixon, Christopher Seeton
  • Patent number: 11453838
    Abstract: This disclosure relates to a lubricant powder composition that is made from a combination of wax, grease thickener, and additives. The lubricant powder composition exhibits low frictional, and improved mechanical stability in high temperature environments. This disclosure further relates to the use of a lubricant powder composition in a mechanical component.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 27, 2022
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Flory K. Wong, Mark W. Baum
  • Patent number: 11453833
    Abstract: The present invention relates to esters of at least one polyol and of a mixture of fatty acids comprising at least one C5-C12 saturated fatty acid and at least one C10-C12 unsaturated fatty acid.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 27, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Stéphanie Lebrun, Salomé Gravelat, Guillaume Le
  • Patent number: 11446586
    Abstract: According to an example aspect of the present invention, there is provided a method for separating and purifying furan carboxylates from a crude reaction mixture comprising furans, by utilizing high vacuum distillation in a total heating environment.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: September 20, 2022
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: David Thomas, Juha Linnekoski
  • Patent number: 11434445
    Abstract: The invention provides a grease composition for a ball joint which has a low friction coefficient under a load from normal temperatures to high temperatures, a small difference between static friction and dynamic friction, and little change in the friction coefficient even after repeated operation. TO this end, the invention provides a grease composition for a ball joint comprising: (i) a polyisoprene rubber and/or (ii) a polyisoprene rubber viscous material; a specific aliphatic amide and/or a specific aliphatic bisamide; and a specific urea compound.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 6, 2022
    Assignee: SHELL USA, INC.
    Inventors: Yoshitomo Fujimaki, Hiroki Yano, Kunitoshi Abe
  • Patent number: 11421173
    Abstract: A sliding member includes: a base material; a coating layer formed on the base material and made of a resin composition including: a binder resin including polyamideimide; PTFE dispersed in the binder resin; and at least one of graphite and MoS2 dispersed in the binder resin; wherein a surface roughness of the coating layer after a sliding test is equal to or less than the surface roughness of the coating layer before the sliding test.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 23, 2022
    Inventors: Kyohei Yamane, Masanori Akizuki