Patents Examined by Richard M Rump
  • Patent number: 11340187
    Abstract: A surface modified electrode, and methods for preparing the surface modified electrode for use in an electrochemical sensor for detection of an analyte is described. The surface modified electrode includes a copper oxide (CuO) co-doped tin dioxide (SnO2) nano-spikes disposed over a gold-plated chip. The surface modified electrode further includes a polymer matrix (nafion) configured to bind the gold-plated chip with the copper oxide (CuO) co-doped tin dioxide (SnO2) nano-spikes. The present disclosure also relates to a process of preparing the surface modified electrode. The surface modified electrode of the present disclosure can be used in electrochemical sensors for detection of analytes, like 4-nitrophenol (4-NP).
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: May 24, 2022
    Assignee: KING ABDULAZIZ UNIVERSITY
    Inventors: Abdullah Mohamed Asiri, Mohammed Muzibur Rahman, Khalid A. Alamry, Jahir Ahmed
  • Patent number: 11319209
    Abstract: Cellulose-nanofiber carbon which can achieve a large specific surface area, and a method of producing the same are provided. The method for heat treating a cellulose nanofiber for carbonization includes: a freezing step of freezing a solution or gel containing the cellulose nanofiber to obtain a frozen product a drying step of drying the frozen product in a vacuum to obtain a dried product and a carbonizing step of heating and carbonizing the dried product in an atmosphere which does not burn the dried product to obtain the cellulose-nanofiber carbon.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 3, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masaya Nohara, Shuhei Sakamoto, Mikayo Iwata, Masahiko Hayashi, Takeshi Komatsu
  • Patent number: 11312638
    Abstract: Disclosed is a method for synthesizing copper sulfide nano powder using plasma synthesis. The method comprises providing a copper compound to a plasma apparatus, adding a sulfur, and performing a plasma process with respect to the copper compound and the sulfur for synthesizing a nano copper sulfide.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: April 26, 2022
    Assignee: KOLON GLOTECH, Inc.
    Inventors: Soo-Heon Kim, Jong-Hyun Hwang, Shin-Hyuck Kang
  • Patent number: 11312628
    Abstract: The present invention relates to a method for enhancing tensile strength of a carbon nanotube (CNT) fiber aggregate, comprising dispersing a CNT fiber aggregate with chlorosulfonic acid (CSA), followed by thermal treatment, wherein a particular magnitude of tension is applied upon the thermal treatment, whereby the CNT fiber aggregate is increased in alignment level and tensile strength.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 26, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eugene Oh, Juhan Kim, Ji Eun Kim, Jaehong Lee, Won Jae Lee
  • Patent number: 11306000
    Abstract: Provided are a graphene-based compound, a preparation method thereof, a single-phase composition for preparing a graphene-based compound, and a graphene quantum dot. Specifically, provided are a graphene-based compound prepared from a single-phase composition for preparing a graphene-based compound including hydrocarbyl amine, a hydroxyl group-containing carbon source, and an acid, a preparation method thereof, a single-phase composition for preparing a graphene-based compound, and a graphene quantum dot.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: April 19, 2022
    Assignees: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: O Ok Park, Seok Hwan Lee, Sang Hyuk Im
  • Patent number: 11299399
    Abstract: A method comprising reacting an aluminum mineral polymorph or a gallium mineral polymorph with an acid at an aluminum metal to acid molar ratio or gallium metal to acid molar ratio sufficient to produce M13 nanoscale clusters, M nano-agglomerates, or a M13 slurry, wherein M is Al or Ga.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: April 12, 2022
    Assignees: University of Oregon, Oregon State University
    Inventors: Brantly Fulton, Milton N. Jackson, Jr., Darren W. Johnson, Shannon W. Boettcher, Cory K. Perkins, Douglas A. Keszler, James E. Hutchison
  • Patent number: 11292722
    Abstract: Spent cannabis biomass is heated in stages, the first to remove water and volatile components, and the second to reclaim leftover cannabinoids. During a third, higher temperature stage, the biomass is subjected to a CO2 and/or water vapor treatment in order to obtain activated carbon with a desired porosity level.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 5, 2022
    Assignee: Nextleaf Solutions Ltd.
    Inventors: David Michael Novitski, Xuan Jia
  • Patent number: 11292721
    Abstract: A graphite film has a higher degree of thermal diffusion property in one in-plane direction and a method produces the graphite film. The graphite film includes a first axial direction, which is a direction having the highest thermal diffusivity in a film surface, and a second axial direction orthogonal to the first axial direction in the film surface. A value obtained by dividing the thermal diffusivity in the first axial direction by a thermal diffusivity in the second axial direction is not less than 1.020 and not more than 1.300.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 5, 2022
    Assignee: KANEKA CORPORATION
    Inventors: Keisuke Inaba, Yusuke Ohta, Satoshi Katayama, Makoto Kutsumizu, Yasushi Nishikawa
  • Patent number: 11286166
    Abstract: The present invention provides a safe and highly efficient method for producing graphite oxide. The present invention relates to a method for producing graphite oxide by oxidizing graphite, the method including the step of oxidizing graphite by adding a permanganate to a liquid mixture containing graphite and sulfuric acid while maintaining the concentration of heptavalent manganese at 1% by mass or less in 100% by mass of the liquid mixture.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 29, 2022
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hironobu Ono, Osamu Konosu, Shin-ichi Okuoka, Syun Gohda, Shusuke Kamata, Yuichi Sato, Yuta Nishina
  • Patent number: 11274041
    Abstract: The present invention relates to a method for preparing a carbon nanotube fiber aggregate formed of single-wall carbon nanotubes, and the manufacturing efficiency of a carbon nanotube fiber comprising single-wall carbon nanotubes can be improved by controlling the molar ratio of a carbon source and of a reducing gas in a carrier gas.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: March 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eugene Oh, Juhan Kim, Ji Eun Kim, Won Jae Lee
  • Patent number: 11274042
    Abstract: Methods are disclosed to make coke, graphite, graphene and other materials from biomass derived bio-oil.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: March 15, 2022
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Robert Milton Baldwin, Mark R. Nimlos, Andrew Nolan Wilson, Maarit Kristiina Iisa
  • Patent number: 11261092
    Abstract: The invention provides a method of producing graphene. The method comprising: A) mixing graphite powders with a silk fibroin nanofiber solution, performing mechanical stirring to exfoliate graphite to form graphene flakes; wherein the silk fibroin nanofibers in the silk fibroin nanofiber solution have a crystallinity of 40% or above; the silk fibroin nanofibers have a diameter of 10 to 30 nm; the silk fibroin nanofibers have a length of 100 nm to 3 ?m; the mechanical stirring has a shearing speed of 1,000 to 50,000 rpm; and the duration of the mechanical stirring is 10 min to 6 h; B) centrifuging the solution obtained in step A) after exfoliation to remove unexfoliated graphite; and C) centrifuging the centrifuged solution obtained in step B), and separating graphene from the silk fibroin nanofibers to obtain the graphene.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 1, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Qiang Lu, Xiaoyi Zhang, Liying Xiao
  • Patent number: 11261094
    Abstract: The invention provides a method for manufacturing nano carbon micro particles, including the following steps: step one: digesting the Malvaceae plants to produce solutions containing lignin; step two: extracting lignin condensation from the solution containing lignin, and then removing salt from the lignin condensation to form material containing lignin; step three: carbonizing the material containing lignin to form carbides; step four: crushing the carbides; step five: performing high-frequency heat treatment on the crushed carbides to obtain carbon micro particles; further including step six: crushing again the carbon micro particles so that the carbon micro particles are nano-sized and finely pulverized. The high-purity carbon micro particles obtained by the present invention have excellent properties in aspects of conductivity, wear resistance, heat resistance, corrosion resistance, etc.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 1, 2022
    Inventors: Peng Wu, Yanting Cai
  • Patent number: 11254581
    Abstract: The present invention is a process, a method, and system for recovery and concentration of dissolved ammonium bicarbonate from a wastewater containing ammonia (NH3) using gas separation, condensation, and crystallization, each at controlled operating temperatures.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: February 22, 2022
    Assignee: BION ENVIRONMENTAL TECHNOLOGIES, INC.
    Inventors: Dominic Bassani, Morton Orentlicher, Mark M. Simon, Stephen Pagano
  • Patent number: 11254574
    Abstract: A graphene material prepared using waste tires and a preparation method thereof. Waste tires are crushed to 30-200 meshes to obtain tire powders. The tire powders are mixed with KOH or an aqueous solution of KOH to obtain a homogeneous mixture. The mixture is dried at 50-90° C. for 12-48 hours, heated and calcinated in a tube furnace under a protective gas for 1-48 hour to obtain a black lump. The black lump is washed with distilled water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, and then washed with deionized water for at least 3 times to obtain a black powder. The black powder is dried to obtain the graphene material. The graphene material has a three-dimensional structure composed of oligolayer graphene intertwined and connected with each other, has a high crystallinity, is not easily agglomerated, and thus can maintain nano-effect of the graphene material.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 22, 2022
    Assignee: ZHEJIANG A & F UNIVERSITY
    Inventors: Qingfeng Sun, Chao Wang, Hanwei Wang
  • Patent number: 11254577
    Abstract: Embodiments of the present disclosure describe a method of preparing a colloidal solution comprising preparing a salted aqueous solvent and dispersing a graphitic material in the salted aqueous solvent. Embodiments of the present disclosure further describe a method of treating a graphitic material comprising agitating a graphitic material in a salted aqueous solvent and removing residual chemical species to obtain a treated graphitic material. Embodiments of the present disclosure also describe a colloidal solution comprising a liquid medium and a treated graphitic material dispersed in the liquid medium sufficient to form a colloidal solution.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: February 22, 2022
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xuezhu Xu, Jian Zhou, Gilles Lubineau
  • Patent number: 11254575
    Abstract: The present invention relates to a process, reactor and system to produce self-standing two-dimensional nanostructures, using a microwave-excited plasma environment. The process is based on injecting, into a reactor, a mixture of gases and precursors in stream regime. The stream is subjected to a surface wave electric field, excited by the use of microwave power which is introduced into a field applicator, generating high energy density plasmas, that break the precursors into its atomic and/or molecular constituents. The system comprises a plasma reactor with a surface wave launching zone, a transient zone with a progressively increasing cross-sectional area, and a nucleation zone. The plasma reactor together with an infrared radiation source provides a controlled adjustment of the spatial gradients, of the temperature and the gas stream velocity.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 22, 2022
    Assignee: INSTITUTO SUPERIOR TÉCNICO
    Inventors: Elena Stefanova Tatarova, Julio Paulo Dos Santos Duarte Vieira Henriques, Luis Paulo Da Mota Capitao Lemos Alves, Bruno Miguel Soares Goncalves
  • Patent number: 11251453
    Abstract: Methods and compositions for making fuel cell components are described. In one embodiment, the method comprises providing a substrate, and forming or adhering an electrode on the substrate, wherein the forming includes depositing an aqueous mixture comprising water, a water-insoluble component, a catalyst, and an ionomer. The water-insoluble component comprises a water-insoluble alcohol, a water-insoluble carboxylic acid, or a combination thereof. The use of such water-insoluble components results in a stable liquid medium with reduced reticulation upon drying, reduced dissolution of the substrate, and reduced penetration of the pores of the substrate.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 15, 2022
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Mark Edmundson, F. Colin Busby
  • Patent number: 11235974
    Abstract: A process and a plant for the continuous conversion of a hydrocarbonaceous feed gas into a synthesis gas comprising carbon monoxide and hydrogen, wherein the H2/CO molar ratio of the product gases can be varied within a wide range. This is achieved in that at least a part of a methane-rich gas obtained during the fractionation of the raw synthesis gas is admixed to the feed gas mixture, and that in the alternative at least a part of the H2 product gas and/or a fraction of a hydrogen-rich gas increased with respect to the normal operation of the process is admixed to the heating gas mixture, in order to lower the H2/CO ratio, or at least a part of the CO product gas and/or a fraction of a carbon monoxide-rich gas increased with respect to the normal operation of the process is admixed to the heating gas mixture, in order to increase the H2/CO ratio.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: February 1, 2022
    Assignee: L'Air Liquide, Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bernd Polster, Antoine Hernandez
  • Patent number: 11220432
    Abstract: A method for producing a carbon nanostructure according to an aspect of the present invention is a method in which a carbon nanostructure is produced between a base body and a separable body while the separable body is relatively moved away from the base body, the base body including a carburizable metal that is a principal constituent, the separable body including a carburizable metal that is a principal constituent, the separable body being joined to or in contact with the base body in a linear or strip-like shape. The method includes a carburizing gas feed step, an oxidizing gas feed step, a heating step in which the portion of the base body at which the base body and the separable body are joined to or in contact with each other is heated, and a separation step in which the separable body is relatively moved away from the base body.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: January 11, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takeshi Hikata, Soichiro Okubo, Ryusuke Nakai, Daisuke Tanioka