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).
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Patent number: 12132193Abstract: 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: GrantFiled: March 24, 2023Date of Patent: October 29, 2024Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Patent number: 12122704Abstract: 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: GrantFiled: November 9, 2021Date of Patent: October 22, 2024Assignee: UNIFRAX I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
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Publication number: 20240088351Abstract: 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: ApplicationFiled: September 2, 2022Publication date: March 14, 2024Inventors: Donghui ZHAO, Bruce K. ZOITOS, Wenbo CHENG, Adam KELSALL, Chad D. CANNAN
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Publication number: 20230253544Abstract: 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: ApplicationFiled: March 24, 2023Publication date: August 10, 2023Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Patent number: 11652201Abstract: 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: GrantFiled: July 2, 2021Date of Patent: May 16, 2023Assignee: UNIFRAX I LLCInventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Publication number: 20220247036Abstract: 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: ApplicationFiled: June 18, 2020Publication date: August 4, 2022Inventors: Kevin E. Siters, Kenneth B. Miller, Daniel Brandel, Mark D. Stahlman, Mauricio Munhoz de Souza, Bruce K. Zoitos, Adam Kelsall, Chad D. Cannan
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Publication number: 20220064071Abstract: 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: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON, Karen L. HANSON
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Patent number: 11203551Abstract: 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: GrantFiled: October 5, 2018Date of Patent: December 21, 2021Assignee: UNIFRAX I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
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Publication number: 20210336243Abstract: 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: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Patent number: 11069885Abstract: 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: GrantFiled: September 13, 2018Date of Patent: July 20, 2021Assignee: UNIFRAX I LLCInventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Publication number: 20210078898Abstract: 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: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
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Patent number: 10882779Abstract: 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: GrantFiled: May 25, 2018Date of Patent: January 5, 2021Assignee: UNIFRAX I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20200369893Abstract: 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: ApplicationFiled: August 11, 2020Publication date: November 26, 2020Inventors: 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
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Patent number: 10745571Abstract: 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: GrantFiled: May 17, 2019Date of Patent: August 18, 2020Assignee: Unifrax I LLCInventors: 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
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Publication number: 20190360630Abstract: 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: ApplicationFiled: May 25, 2018Publication date: November 28, 2019Inventors: Donghui ZHAO, Bruce K. ZOITOS, Michael J. ANDREJCAK, Jason M. HAMILTON
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Publication number: 20190352515Abstract: 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: ApplicationFiled: May 17, 2019Publication date: November 21, 2019Inventors: 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
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Patent number: 10301213Abstract: 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: GrantFiled: June 28, 2017Date of Patent: May 28, 2019Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
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Publication number: 20190106359Abstract: 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: ApplicationFiled: October 5, 2018Publication date: April 11, 2019Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
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Publication number: 20190081316Abstract: 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: ApplicationFiled: September 13, 2018Publication date: March 14, 2019Inventors: Bruce K. Zoitos, Adam Kelsall, Jonathan Cross, Chad Cannan
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Patent number: 10023491Abstract: 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: GrantFiled: January 19, 2017Date of Patent: July 17, 2018Assignee: Unifrax I LLCInventors: Donghui Zhao, Bruce K. Zoitos, Jason M. Hamilton, Michael J. Andrejcak, Karen L. Hanson