Patents Examined by Colin W Slifka
  • Patent number: 11517832
    Abstract: A metal sequestering material can be contacted with a reaction mixture of a metal-catalyzed reaction to remove transition metals or transition metal complexes. The reaction mixture contains transition metals and a reaction product in solution. These transition metals may be, for example, Pd, Ir, Ru, Rh, Pt, Au, or Hg. The concentration of transition metals in the reaction mixture is reduced to less than 100 ppm or even less than 10 ppm.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 6, 2022
    Assignee: The Research Foundation for The State University of New York
    Inventors: Steven Diver, Jonathan French
  • Patent number: 11518682
    Abstract: The present invention provides a means capable of suppressing the formation of fine particles in a method for producing a silica sol.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: December 6, 2022
    Assignee: FUJIMI INCORPORATED
    Inventors: Yusuke Kawasaki, Shogo Tsubota, Masaaki Ito, Jun Shinoda, Keiji Ashitaka
  • Patent number: 11512003
    Abstract: The invention relates to a method for synthesizing ultrasmall silica nanoparticles, useful in particular for diagnostics and/or therapy. More specifically, a method for synthesizing silica nanoparticles, said method comprising the mixing of at least one silane which is negatively charged at physiological pH with at least one silane which is neutral at physiological pH, and/or at least one silane which is positively charged at physiological pH, wherein: —the molar ratio A of neutral silane(s) to negatively charged silane(s) is defined as follows: 0?A?6, —the molar ratio B of positively charged silane(s) to negatively charged silane(s) is defined as follows: 0?B?5, —the molar ratio C of neutral and positively charged silanes to negatively charged silane(s) is defined as follows: 0<C?8. The invention also relates to the obtained ultrasmall silica nanoparticles.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: November 29, 2022
    Assignees: NH THERAGUIX, Universite Claude Bernard Lyon 1, Centre National de La Recherche Gantifote—CNRS—
    Inventors: François Lux, Olivier Tillement, Fabien Rossetti, Vivek Thakare, Vu Long Tran
  • Patent number: 11512002
    Abstract: Disclosed herein are methods for the preparation of porous metal oxide materials, including metal oxide xerogels and metal oxide aerogels. Methods for preparing porous metal oxide materials can comprise (i) reacting a metal alkoxide with water in the presence of a catalyst system to form a partially hydrolyzed sol, (ii) contacting the partially hydrolyzed sol with a base catalyst and a non-aqueous solvent to form a precursor gel; and (iii) drying the precursor gel to form the porous metal oxide material. The catalyst system employed in step (i) comprises a combination of a weak acid and a strong acid.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: November 29, 2022
    Assignee: University of Virginia Patent Foundation
    Inventors: Jong Ho Sonn, Pamela M. Norris
  • Patent number: 11511347
    Abstract: Support substrates are used in certain additive fabrication processes to permit processing of an object. For additive fabrication processes with materials that are sintered into a final part, a multi-layer support substrate of interleaved support and interface layers is fabricated to support an object while reducing an impact of friction on shrinkage of the part during the sintering process.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: November 29, 2022
    Assignee: Desktop Metal, Inc.
    Inventor: Michael A. Gibson
  • Patent number: 11511534
    Abstract: In an example, an apparatus includes an image processing system, a print engine, and a vision system. The image processing system generates electronic signals based on a model of an object to be fabricated using an additive manufacturing process. The print engine performs the additive manufacturing process in a plurality of passes based on the electronic signals. The vision system acquires a plurality of thermal images of the plurality of passes and assigns individual passes to individual images based on data acquired during a build of a calibration object by the additive manufacturing process. The print engine may further include a material coater to spread a powder coating material, a plurality of fluid ejection devices to eject a fusing agent, and an emitter to emit energy to fuse the fusing agent and the powder coating material into a layer of the object to be fabricated.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 29, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sunil Kothari, Juan Carlos Catana, Tod Heiles, Jun Zeng, Gary J. Dispoto
  • Patent number: 11511350
    Abstract: Techniques for depowdering additively fabricated parts are described in which powder is separated from parts by creating a large pressure differential between the powder and parts and a nearby location. The pressure differential may cause gas to quickly flow into and/or around the powder and parts, thereby producing a force against the powder and parts. Since the powder is generally much lighter than the parts, this force may be much more effective at moving the powder than moving the parts. As a result, the powder and parts may be separated from one another. The pressure differential may be created in various ways, such as by holding the parts and part in a chamber that is pressurized with air and/or other gas(es). Rapid depressurization of the chamber may produce the aforementioned pressure differential, leading to powder movement away from the parts.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: November 29, 2022
    Assignee: Desktop Metal, Inc.
    Inventors: Emanuel M. Sachs, Midnight Zero
  • Patent number: 11511490
    Abstract: A method of changing the gas content of a device (100) which comprises a first chamber (110). The method comprises: arranging the device in a first configuration, wherein the first chamber has a first internal volume; providing a flow of a first gas to the first chamber so that the gas content of the first chamber is at least partially changed; transitioning the device from the first configuration to a second configuration, wherein the first chamber has a second internal volume which is grater than the first internal volume.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 29, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rhys Mansell, Pablo Antonio Murciego Rodriguez, Ignacio Alejandre Fernandez
  • Patent number: 11504773
    Abstract: Systems and methods for additive manufacturing systems implementing adaptive optics in accordance with various embodiments of the invention are illustrated. One embodiment includes an additive manufacturing system including a laser source configured to form an output beam, a scanning mirror disposed in an optical path of the output beam, wherein the scanning mirror is configured to reflect and scan the output beam at a range of scan angles, a deformable mirror disposed in the optical path of the output beam, wherein the deformable mirror has a plurality of configurations for reflecting and altering a wavefront of the output beam, wherein the configuration of the deformable mirror is based on the scan angle of the scanning mirror, and a print bed configured to hold a print material, wherein the output beam is configured to fuse the print material to form a build object.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 22, 2022
    Assignee: California Institute of Technology
    Inventors: John B Steeves, Scott N Roberts, Samuel C Bradford, Christine A Gebara, Christina J Naify
  • Patent number: 11498841
    Abstract: An economic process for producing high quality finely divided silicon dioxide from mixtures comprising economical silicon compounds without operational disturbances is characterized by using as an Si source mixture of at least two silicon compounds, at least one being carbon-containing and at least one being carbon-free, supplying a fuel gas and an oxygen-containing source, the molar C/Si ratio of this mixture being between 10/BET and 35/BET, and the molar H/Cl ratio of this mixture being between 0.45+(BET/600) and 0.95+(BET/600), with BET being the specific surface area of the pyrogenic silicon dioxide under production, introducing this mixture as the main flow into a reaction space and igniting and reacting it, and isolating the resulting solid.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 15, 2022
    Assignee: WACKER CHEMIE AG
    Inventor: Mikhail Sofin
  • Patent number: 11498063
    Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 15, 2022
    Assignee: International Business Machines Corporation
    Inventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
  • Patent number: 11498840
    Abstract: A crushed polycrystalline silicon lump is provided in which a surface metal concentration is 15.0 pptw or less and preferably 7.0 to 13.0 pptw, and in the surface metal concentration, a surface tungsten concentration is 0.9 pptw or less and preferably 0.40 to 0.85 pptw, and a surface cobalt concentration is 0.3 pptw or less and preferably 0.04 to 0.08 pptw.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 15, 2022
    Assignee: Tokuyama Corporation
    Inventor: Shigeki Nishimura
  • Patent number: 11498130
    Abstract: In an example of a method for three-dimensional (3D) printing, build material layers are patterned to form an intermediate structure. During patterning, a binding agent is selectively applied to define a patterned intermediate part. Also during patterning, i) the binding agent and a separate agent including a gas precursor are, or ii) a combined agent including a binder and the gas precursor is, selectively applied to define a build material support structure adjacent to at least a portion of the patterned intermediate part. The intermediate structure is heated to a temperature that activates the gas precursor to create gas pockets in the build material support structure.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: November 15, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Mohammed S Shaarawi, James McKinnell, Vladek Kasperchik, David A Champion
  • Patent number: 11502203
    Abstract: A coating liquid for forming a metal oxide film, the coating liquid including: a metal source, which is at least one selected from the group consisting of inorganic salts, oxides, hydroxides, metal complexes, and organic acid salts; at least one alkali selected from the group consisting of organic alkalis and inorganic alkalis; and a solvent.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 15, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Shinji Matsumoto, Yuji Sone, Ryoichi Saotome, Sadanori Arae, Minehide Kusayanagi, Yuichi Ando
  • Patent number: 11502320
    Abstract: Provided are a solid oxide fuel cell/electrolytic cell and electric stack, which relate to the field of cells. A metal support frame is molded in one step or more steps through the additive manufacturing technology. And then a fuel/electrolytic cell functional layer is formed on the metal support frame by means of thermal spraying, tape casting, screen printing or chemical vapor deposition method, and self-sealing of the solid oxide fuel cell/electrolytic cell is realized through a dense structure of electrolyte.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: November 15, 2022
    Assignee: INSTITUTE OF NEW MATERIALS, GUANGDONG ACADEMY OF SCIENCES
    Inventors: Min Liu, Chen Song, Taikai Liu, Dongdong Dong, Chunming Deng, Kesong Zhou, Yapeng Zhang, Kui Wen, Changguang Deng, Wenyou Ma
  • Patent number: 11485643
    Abstract: The present disclosure relates to a novel method for introducing various metals in the structure of zeolite frameworks by isomorphous substitution. This new method is based on a hydrothermal reaction of the metal with the zeolite. This method allows obtaining zeolite with a structure and with control of the metal location.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: November 1, 2022
    Assignees: TOTALENERGIES ONETECH, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Cindy Aquino, Svetlana Mintova, Jean-Pierre Gilson, Florent Dubray, Delphine Minoux, Julien Grand, Nikolai Nesterenko
  • Patent number: 11485870
    Abstract: The present disclosure is drawn to material sets and 3-dimensional printing systems that include a fusing agent. One example of a material set can include a fusing agent and a detailing agent. The fusing agent can include water, a carbon black pigment, and a water-soluble co-solvent in an amount from 20 wt % to 60 wt %. The detailing agent can include water and a black dye. In another example, a material set can include a fusing agent and a thermoplastic polymer powder.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 1, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Keshava A Prasad, Alexey S Kabalnov, Stephen G. Rudisill, Ali Emamjomeh, Michael Novick, Bernardo Gutierrez
  • Patent number: 11479861
    Abstract: A method for forming a metallic structure having a secondary component includes positioning the secondary component on a main formation surface of a main tool, the main formation surface corresponding to a desired shape of a first layer of material. The method also includes depositing a layer of material on the secondary component and the main formation surface using a cold-spray technique such that the layer of material bonds to the secondary component. The method also includes removing the layer of material and the secondary component to form the metallic structure.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: October 25, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Gary D. Roberge, William J. Brindley
  • Patent number: 11479463
    Abstract: A method of making a ?-SiAlON is described in involves mixing nanoparticles of AlN, Al2O3, and SiO2 with particles of Si3N4 and spark plasma sintering the mixture. The sintering may be at a temperature of 1450-1600° C. or about 1500° C. The particles of Si3N4 may be nanoparticles comprising amorphous Si3N4, or 25-55 ?m diameter microparticles comprising ?-Si3N4.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 25, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Abbas Saeed Hakeem, Anwar Ul-Hamid, Oki Muraza, Muhammad Ali Ehsan
  • Patent number: 11471873
    Abstract: Methods of making an iron based catalyst using microwave hydrothermal synthesis are provided. The methods include dissolving iron(III) nitrate, Fe(NO3)3, in an organic solvent to form a solution. Once dissolved, the methods include a step of neutralizing the solution with an alkaline mineralizing agent to obtain a precipitate. The solution with the precipitate is then subjected to microwave radiation to cause a temperature gradient and a hydrothermal crystallization process to form a synthesized product. The synthesized product is subsequently separated from the mineralizing agent. The method includes washing and drying the synthesized product to obtain particles of sodium iron oxide (NaFeO2) catalyst that can be used as a composition for a passive NOx adsorber. A two-stage NOx abatement device for removal of NOx from an exhaust gas stream during a cold start operation of an internal combustion engine is also provided.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 18, 2022
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Krishna Gunugunuri, Charles Alexander Roberts, Torin C. Peck