Patents by Inventor Bruce K. Zoitos

Bruce K. Zoitos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240088351
    Abstract: A composite fiber includes a porous silicon phase including elemental silicon and a porous carbon phase including elemental carbon. The silicon phase and the carbon phase form an intertwined network structure in the composite fiber such that each of the silicon phase and the carbon phase is interconnected and continuous throughout the composite fiber. The silicon phase and the carbon phase together constitute at least 50 wt % of the composite fiber.
    Type: Application
    Filed: September 2, 2022
    Publication date: March 14, 2024
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Wenbo CHENG, Adam KELSALL, Chad D. CANNAN
  • Publication number: 20230253544
    Abstract: A porous reduced silica fiber material has a diameter of about 0.1 to about 20 microns and a surface area of about 5 m2/g to about 400 m2/g. The porous reduced fiber material may be used to form an electrode having a high capacity and improved cycle life over comparable commercial silicon electrodes.
    Type: Application
    Filed: March 24, 2023
    Publication date: August 10, 2023
    Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
  • Patent number: 11652201
    Abstract: A porous reduced silica fiber material has a diameter of about 0.1 to about 20 microns and a surface area of about 5 m2/g to about 400 m2/g. The porous reduced fiber material may be used to form an electrode having a high capacity and improved cycle life over comparable commercial silicon electrodes.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: May 16, 2023
    Assignee: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
  • Publication number: 20220247036
    Abstract: Nonwoven fiber mats include primarily B-glass fibers, and have a thickness of about 10 to about 700 microns and a basis weight of about 1 to 70 g/m2. The mats are generally thermally stable at temperatures of up to 650° C., and are suitable for use as battery separators.
    Type: Application
    Filed: June 18, 2020
    Publication date: August 4, 2022
    Inventors: Kevin E. Siters, Kenneth B. Miller, Daniel Brandel, Mark D. Stahlman, Mauricio Munhoz de Souza, Bruce K. Zoitos, Adam Kelsall, Chad D. Cannan
  • Publication number: 20220064071
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON, Karen L. HANSON
  • Patent number: 11203551
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 21, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
  • Publication number: 20210336243
    Abstract: A porous reduced silica fiber material has a diameter of about 0.1 to about 20 microns and a surface area of about 5 m2/g to about 400 m2/g. The porous reduced fiber material may be used to form an electrode having a high capacity and improved cycle life over comparable commercial silicon electrodes.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
  • Patent number: 11069885
    Abstract: A porous reduced silica fiber material has a diameter of about 0.1 to about 20 microns and a surface area of about 5 m2/g to about 400 m2/g. The porous reduced fiber material may be used to form an electrode having a high capacity and improved cycle life over comparable commercial silicon electrodes.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 20, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
  • Publication number: 20210078898
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
  • Patent number: 10882779
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 5, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20200369893
    Abstract: Fire protective compositions include colloidal silica solids, clay, a low biopersistence fiber or refractory ceramic fiber, water, and optionally a chelating agent. Methods of using the fire protective compositions include providing a polymeric foam substrate, applying the fire protective composition on the polymeric foam substrate, and allowing the fire protective composition to dry.
    Type: Application
    Filed: August 11, 2020
    Publication date: November 26, 2020
    Inventors: Bruce K. ZOITOS, Jonathan CROSS, Adam KELSALL, Chad D. CANNAN, Kenneth B. MILLER, Gary A. LEE, Mark E. BEAUHARNOIS, Anastasia KEEFE, Donald John DANIELS, IV
  • Patent number: 10745571
    Abstract: Fire protective compositions include colloidal silica solids, clay, a low biopersistence fiber or refractory ceramic fiber, water, and optionally a chelating agent. Methods of using the fire protective compositions include providing a polymeric foam substrate, applying the fire protective composition on the polymeric foam substrate, and allowing the fire protective composition to dry.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 18, 2020
    Assignee: Unifrax I LLC
    Inventors: Bruce K. Zoitos, Jonathan Cross, Adam Kelsall, Chad D. Cannan, Kenneth B. Miller, Gary A. Lee, Mark E. Beauharnois, Anastasia Keefe, Donald John Daniels, IV
  • Publication number: 20190360630
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 28, 2019
    Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
  • Publication number: 20190352515
    Abstract: Fire protective compositions include colloidal silica solids, clay, a low biopersistence fiber or refractory ceramic fiber, water, and optionally a chelating agent. Methods of using the fire protective compositions include providing a polymeric foam substrate, applying the fire protective composition on the polymeric foam substrate, and allowing the fire protective composition to dry.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Inventors: Bruce K. ZOITOS, Jonathan Cross, Adam Kelsall, Chad D. Cannan, Kenneth B. Miller, Gary A. Lee, Mark E. Beauharnois, Anastasia Keefe, Donald John Daniels, IV
  • Patent number: 10301213
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 28, 2019
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Publication number: 20190106359
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
  • Publication number: 20190081316
    Abstract: A porous reduced silica fiber material has a diameter of about 0.1 to about 20 microns and a surface area of about 5 m2/g to about 400 m2/g. The porous reduced fiber material may be used to form an electrode having a high capacity and improved cycle life over comparable commercial silicon electrodes.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 14, 2019
    Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
  • Patent number: 10023491
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes intended synergistic amounts of calcia and, an additional alkali metal oxide other than magnesia, such as lithium oxide, to improve the thermal performance and manufacturability of the fiber. The inorganic fiber is easier to manufacture, has a better fiber quality, exhibits good thermal performance at a use temperature of 1260° C. and greater, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 17, 2018
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Jason M. Hamilton, Michael J. Andrejcak, Karen L. Hanson
  • Patent number: 9926224
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components which further includes an intended strontium oxide additive to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater for 24 hours or more, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: March 27, 2018
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Patent number: 9919954
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: March 20, 2018
    Assignee: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak