Patents Examined by Pegah Parvini
  • Patent number: 11554462
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”), methods of fabricating PDCs, and applications for such PDCs. In an embodiment, a method includes providing an at least partially leached polycrystalline diamond (“PCD”) body. A residual amount of acid may remain in and/or on the at least partially leached PCD body. The method further includes removing and/or neutralizing at least some of the residual amount of acid from the at least partially leached PCD body and/or a substrate to which the at least partially leached PCD body is attached.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: January 17, 2023
    Assignee: US Synthetic Corporation
    Inventors: Julie Ann Kidd, Heather Marie Schaefer, Jason K. Wiggins, Cody Frisby
  • Patent number: 11548830
    Abstract: The invention relates to a method for producing a ceramic moulded body, comprising the following steps: a) producing a green body containing ceramic material, binding agents and an organic pore forming agent; b) heating the green body to a temperature higher than the sublimation and/or decomposition temperature of the pore forming agent; c) burning the green body to form a ceramic moulded body. According to the invention, the binding agent comprises polyglycols and fumaric acid.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 10, 2023
    Assignee: HERMES SCHLEIFMITTEL GMBH
    Inventors: Siegbert Christiani, Chriffe Omar Belda, Christian Wenzel
  • Patent number: 11542425
    Abstract: The present disclosure a leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: January 3, 2023
    Assignee: Southwest Petroleum University
    Inventors: Yang Bai, Lingfeng Wu, Jing Zhang, Wenzhe Li, Pingya Luo, Feng Dai, Jingping Liu, Ren Wang, Daoxiong Li, Wen Xu
  • Patent number: 11535520
    Abstract: A method of processing a polycrystalline diamond body includes positioning an electrode near the polycrystalline diamond body such that a gap is defined between the electrode and the polycrystalline diamond body, the polycrystalline diamond body having a metallic material disposed in interstitial spaces defined within the polycrystalline diamond body. The method includes applying a voltage between the electrode and the polycrystalline diamond body, and passing a processing solution through the gap. The electrode is a cathode and the polycrystalline diamond body is an anode. An assembly for processing a polycrystalline diamond body includes the polycrystalline diamond body, an electrode positioned such that a gap is defined between the electrode and the polycrystalline diamond body, a processing solution passing through the gap such that the processing solution is in electrical communication with each of the polycrystalline diamond body and the electrode, and at least one power source.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: December 27, 2022
    Assignee: US Synthetic Corporation
    Inventor: Mark Pehrson Chapman
  • Patent number: 11534892
    Abstract: In methods and systems of making an abrasive article, abrasive particles are loaded to a distribution tool including a plurality of upper walls defining a plurality of spacing slots, and a plurality of lower walls defining a plurality of distribution slots. The spacing slots are open to the distribution slots, which are open to a lower side of the tool. The loaded particles are spaced and distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool in a machine direction. The upper walls space the particles in the machine direction. The particles distributed by the lower walls undergo an orientation sequence in which each particle is oriented into a column aligned along the machine direction. The upper walls can be disposed oblique to the lower walls. The upper and lower walls can have pointed upper portions.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 27, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yuyang Liu, Junting Li, Geoffrey I. Wilson, Ernest L. Thurber
  • Patent number: 11536091
    Abstract: A cutting element comprises a supporting substrate, and a cutting table attached to an end of the supporting substrate. The cutting table comprises inter-bonded diamond particles, and a thermally stable material within interstitial spaces between the inter-bonded diamond particles. The thermally stable material comprises a carbide precipitate having the general chemical formula, A3XZn-1, where A comprises one or more of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, and U; X comprises one or more of Al, Ga, Sn, Be, Bi, Te, Sb, Se, As, Ge, Si, B, and P; Z comprises C; and n is greater than or equal to 0 and less than or equal to 0.75. A method of forming a cutting element, an earth-boring tool, a supporting substrate, and a method of forming a supporting substrate are also described.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: December 27, 2022
    Assignee: Baker Hughes Holding LLC
    Inventors: Wanjun Cao, Marc W. Bird
  • Patent number: 11529764
    Abstract: The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 20, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventor: Paul S. Goldsmith
  • Patent number: 11530345
    Abstract: A method of making abrasive particles includes: providing a slurry comprising non-colloidal solid particles and a liquid vehicle; forming at least a portion of the slurry into shaped bodies contacting a substrate; at least partially drying the shaped bodies to provide shaped abrasive precursor particles; separating at least a portion of the shaped abrasive precursor particles from the substrate; and converting at least a portion of the shaped abrasive precursor particles into shaped abrasive particles. The shaped abrasive particles comprise alpha alumina having an average crystal grain size of 0.8 to 8 microns and an apparent density that is at least 92 percent of the true density. Each shaped abrasive particle has a respective surface comprising a plurality of smooth sides that form at least four vertexes. Shaped abrasive particles, abrasive articles including them, and methods of using are also disclosed.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: December 20, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Negus B. Adefris
  • Patent number: 11530467
    Abstract: Cemented carbide contains a first hard phase and a binder phase. The first hard phase is composed of tungsten carbide particles. The binder phase is composed of cobalt, nickel, iron, and copper as constituent elements. An average content of each of the constituent elements is not lower than 10 atomic % and not higher than 30 atomic %. Cemented carbide contains no second hard phase, or a content of the second hard phase is equal to or lower than 2 mass % of a total amount of cemented carbide. The second hard phase is composed of a compound containing at least one type of a metal element selected from the group consisting of a group-IV element, a group-V element, and a group-VI element in a periodic table except for tungsten and at least one type of an element selected from the group consisting of carbon, nitrogen, and oxygen.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 20, 2022
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Takato Yamanishi, Shinya Imamura
  • Patent number: 11524339
    Abstract: A cutting tool incudes a substrate and a coating that coats a surface of the substrate, the coating including a multilayer structure layer composed of at least one layer A and at least one layer B alternately deposited from a side closer to the substrate toward a side closer to a surface, the layer A having an average composition of AlxCr(1-x)N, the layer B being composed of TiyAlzSi(1-y-z)N, the layer A being composed of a domain region and a matrix region, the domain region having a composition ratio of Cr larger than that of Cr of the matrix region, wherein x has a range of 0.5?x?0.8, y has a range of 0.5?y<0.71, z has a range of 0.29?z<0.5, and 1?y?z has a range of 0<1?y?z?0.1.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 13, 2022
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Keizo Tanaka, Shinya Imamura, Haruyo Fukui
  • Patent number: 11524384
    Abstract: Embodiments of the present disclosure provide for abrasive delivery (AD) polishing pads and manufacturing methods thereof. In one embodiment, a method of forming a polishing article includes forming a sub-polishing element from a first curable resin precursor composition and forming a plurality of polishing elements extending from the sub-polishing element. Forming the plurality of polishing elements includes forming a continuous polymer phase from a second curable resin precursor composition and forming a plurality of discontinuous abrasive delivery features disposed within the continuous polymer phase. The sub-polishing element is formed by dispensing a first plurality of droplets of the first curable resin precursor composition. The plurality polishing elements are formed by dispensing a second plurality of droplets of the second curable resin precursor composition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 13, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Ashwin Chockalingam, Rajeev Bajaj, Ashavani Kumar, Daniel Redfield
  • Patent number: 11524390
    Abstract: The present invention provides methods of manufacturing a chemical mechanical polishing (CMP polishing) layer for polishing substrates, such as semiconductor wafers comprising providing a composition of a plurality of liquid-filled microelements having a polymeric shell; classifying the composition via centrifugal air classification to remove fines and coarse particles and to produce liquid-filled microelements having a density of 800 to 1500 g/liter; and, forming the CMP polishing layer by (i) converting the classified liquid-filled microelements into gas-filled microelements by heating them, then mixing them with a liquid polymer matrix forming material and casting or molding the resulting mixture to form a polymeric pad matrix, or (ii) combining the classified liquid-filled microelements directly with the liquid polymer matrix forming material, and casting or molding.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: December 13, 2022
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Bainian Qian, George C. Jacob, Andrew Wank, David Shidner, Kancharla-Arun K. Reddy, Donna Marie Alden, Marty W. DeGroot
  • Patent number: 11518920
    Abstract: A slurry containing abrasive grains and a liquid medium, in which the abrasive grains include first particles and second particles in contact with the first particles, a particle size of the second particles is smaller than a particle size of the first particles, the first particles contain cerium oxide, the second particles contain a cerium compound, and in a case where a content of the abrasive grains is 0.1% by mass, an absorbance for light having a wavelength of 380 nm in a liquid phase obtained when the slurry is subjected to centrifugal separation for 5 minutes at a centrifugal acceleration of 5.8×104 G exceeds 0.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: December 6, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Tomoyasu Hasegawa, Tomohiro Iwano, Takaaki Matsumoto
  • Patent number: 11504823
    Abstract: Articles and methods regarding the making and use of low-shedding nonwoven abrasive articles, such as abrasive wheels and hand pads, that have a low shed rate and achieve a high grind ratio. The abrasive articles comprise a blend of a plurality of primary abrasive particles and a plurality of reinforcing abrasive particles that is disposed on a nonwoven web substrate. The primary abrasive particles have an average particle size equal to or larger than the average fiber diameter of the substrate fibers, and the reinforcing abrasive particles have an average particle size smaller than the average fiber diameter.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 22, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Hooman Amid, Shyiguei Hsu, Fernando J. Ramirez, Karen Judith Sandoval Herrera, Ying Cai
  • Patent number: 11504783
    Abstract: An abrasive article comprising a substrate having an elongated body and abrasive particles attached to the elongated body, the content of the abrasive particles oscillates along the length of the body between a minimum and maximum value, and the minimum content is greater than 0.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 22, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Maureen A. Brosnan, Joseph L. Citrone, Steffi Kaminski, Charles W. Bleakney, IV, Yinggang Tian, Ankit Thakur
  • Patent number: 11505730
    Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
  • Patent number: 11492526
    Abstract: A slurry containing abrasive grains and a liquid medium, in which the abrasive grains include first particles and second particles in contact with the first particles, the first particles contain cerium oxide, the second particles contain a cerium compound, and in a case where a content of the abrasive grains is 2.0% by mass, a BET specific surface area of a solid phase obtained when the slurry is subjected to centrifugal separation for 30 minutes at a centrifugal acceleration of 1.1×104 G is 24 m2/g or more.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: November 8, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Tomoyasu Hasegawa, Tomohiro Iwano, Takaaki Matsumoto, Tomomi Kukita
  • Patent number: 11484990
    Abstract: A bonded abrasive wheel comprises magnetizable abrasive particles retained in an organic binder. The bonded abrasive wheel has a central portion adjacent to a central hub, an outer circumference and a rotational axis extending through the central hub. The magnetizable abrasive particles adjacent to the central hub are aligned at an average angle of less than 35 degrees with respect to the rotational axis, and the magnetizable abrasive particles adjacent to the outer circumference of the bonded abrasive wheel are aligned at an average angle that is from 35 and 90 degrees, inclusive, with respect to the rotational axis. Methods of making a bonded abrasive wheel are also disclosed.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: November 1, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph B. Eckel, Aaron K. Nienaber, Negus B. Adefris, Ronald D. Jesme, Thomas J. Nelson, Don V. West
  • Patent number: 11485889
    Abstract: Various embodiments disclosed relate to a partially shaped abrasive particle. The partially shaped abrasive particle includes a shaped portion, engineered to have a polygonal shape, and an irregular portion. The irregular portion is coupled to a base of the shaped portion, forming a single partially shaped abrasive particle.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 1, 2022
    Assignee: 3M Innovative Properties Company
    Inventor: Yuyang Liu
  • Patent number: 11478899
    Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a vitreous matrix. The shaped abrasive particles have a longest particle lineal dimension on a surface and a shortest particle dimension perpendicular to the longest particle lineal dimension, and the longest particle lineal dimension is at least twice the shortest particle dimension. The shaped abrasive agglomerate particle has a longest agglomerate lineal dimension on a surface and a shortest agglomerate dimension perpendicular to the longest agglomerate lineal dimension, and the longest agglomerate lineal dimension is at least twice the shortest agglomerate dimension. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 25, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Mark A. Lukowski, Negus B. Adefris, Scott W. Peterson, Brian D. Goers, Rebecca A. Putans, Bridgette R. Shannon, Thomas J. Nelson, Jacob S. Beveridge