Patents by Inventor Alvin Lamar Campbell, JR.

Alvin Lamar Campbell, JR. 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).

  • Patent number: 11767256
    Abstract: A method of making a ceramic glaze additive formulation having an antimicrobial property for use with a ceramic article is provided. The method comprises fritting an antimicrobial formulation in a flux frit, providing a silver carrier in a glass matrix, combining the flux frit and the silver carrier in the glass matrix to form the ceramic glaze additive formulation, wherein the silver carrier is combined at an addition rate of at least 2 weight %, based on a dry weight basis of the ceramic glaze formulation. The flux frit is present in the ceramic glaze additive formulation in a range of 94 weight % to 99.5 weight %, based on a dry weight basis of the ceramic glaze additive formulation. A ceramic glaze additive formulation and a ceramic glazed article comprising a ceramic glaze additive formulation are also provided.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 26, 2023
    Assignee: MICROBAN PRODUCTS COMPANY
    Inventors: Alvin Lamar Campbell, Jr., Nathan L. Fields
  • Patent number: 11432550
    Abstract: A biocidal additive formulation comprises a silver containing glass particle, and a combination of at least two metal based compounds. A metal in each of the metal based compounds is selected from the group consisting of silver, copper, zinc, mercury, tin, lead, bismuth, barium, cadmium, chromium, titanium, and a combination thereof. Another biocidal additive formulation comprises a silver containing glass particle, ZnO, and Bi2O3. A glass substrate possessing a durable biocidal property and an article possessing a durable biocidal property are also provided.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: September 6, 2022
    Assignee: MICROBAN PRODUCTS COMPANY
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10899657
    Abstract: A method of making a ceramic glaze additive formulation having an antimicrobial property for use with a ceramic article is provided. The method comprises fritting an antimicrobial formulation in a flux frit, providing a silver carrier in a glass matrix, combining the flux frit and the silver carrier in the glass matrix to form the ceramic glaze additive formulation, wherein the silver carrier is combined at an addition rate of at least 2 weight %, based on a dry weight basis of the ceramic glaze formulation. The flux frit is present in the ceramic glaze additive formulation in a range of 94 weight % to 99.5 weight %, based on a dry weight basis of the ceramic glaze additive formulation. A ceramic glaze additive formulation and a ceramic glazed article comprising a ceramic glaze additive formulation are also provided.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 26, 2021
    Assignee: Microban Products Company
    Inventors: Alvin Lamar Campbell, Jr., Nathan L Fields
  • Patent number: 10863745
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 15, 2020
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10856549
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 8, 2020
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10856550
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 8, 2020
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Publication number: 20200085064
    Abstract: A biocidal additive formulation comprises a silver containing glass particle, and a combination of at least two metal based compounds. A metal in each of the metal based compounds is selected from the group consisting of silver, copper, zinc, mercury, tin, lead, bismuth, barium, cadmium, chromium, titanium, and a combination thereof. Another biocidal additive formulation comprises a silver containing glass particle, ZnO, and Bi2O3. A glass substrate possessing a durable biocidal property and an article possessing a durable biocidal property are also provided.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventor: Alvin Lamar Campbell, JR.
  • Patent number: 10517300
    Abstract: A biocidal additive formulation comprises a silver containing glass particle, and a combination of at least two metal based compounds. A metal in each of the metal based compounds is selected from the group consisting of silver, copper, zinc, mercury, tin, lead, bismuth, barium, cadmium, chromium, titanium, and a combination thereof. Another biocidal additive formulation comprises a silver containing glass particle, ZnO, and Bi2O3. A glass substrate possessing a durable biocidal property and an article possessing a durable biocidal property are also provided.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: December 31, 2019
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10299483
    Abstract: A method of making a ceramic glaze formulation having an antimicrobial property for use with a ceramic article. The method comprises fritting an antimicrobial formulation in a flux frit, providing least one unfritted antimicrobial component, providing a silver carrier in a glass matrix, and combining the flux frit, the at least one unfritted component, and the silver carrier in the glass matrix to form the ceramic glaze formulation. The silver carrier is combined at an addition rate based on a dry weight basis of the ceramic glaze formulation. A ceramic glaze additive formulation and ceramic glazed article are also provided.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: May 28, 2019
    Assignee: Microban Products Company
    Inventors: Alvin Lamar Campbell, Jr., Nathan L. Fields
  • Publication number: 20190075800
    Abstract: A biocidal additive package comprises at least one metal or metal containing compound selected from the group consisting of Cu2O, Cu(OH)2, Cu, CuO3, Cu2O3, and a combination thereof, and at least one non-copper metal or non-copper containing metal compound. Non-limiting examples of non-copper metal and non-copper containing metal compounds are Ag, Ag2O, Bi, Bi2O3, Zn, ZnO, or a combination thereof. A biocidal ceramic glaze layer and an article comprising a biocidal ceramic glaze layer are provided. Also provided is a method of affixing a biocidal ceramic glaze to a substrate.
    Type: Application
    Filed: November 14, 2018
    Publication date: March 14, 2019
    Inventor: Alvin Lamar Campbell, JR.
  • Patent number: 10159255
    Abstract: A biocidal additive package comprises at least one metal or metal containing compound selected from the group consisting of Cu2O, Cu(OH)2, Cu, CuO3, Cu2O3, and a combination thereof, and at least one non-copper metal or non-copper containing metal compound. Non-limiting examples of non-copper metal and non-copper containing metal compounds are Ag, Ag2O, Bi, Bi2O3, Zn, ZnO, or a combination thereof. A biocidal ceramic glaze layer and an article comprising a biocidal ceramic glaze layer are provided. Also provided is a method of affixing a biocidal ceramic glaze to a substrate.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: December 25, 2018
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Publication number: 20180317494
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Inventor: Alvin Lamar Campbell, JR.
  • Publication number: 20180317495
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Inventor: Alvin Lamar Campbell, JR.
  • Publication number: 20180317493
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Inventor: Alvin Lamar Campbell, JR.
  • Publication number: 20180235233
    Abstract: A method of making a ceramic glaze formulation having an antimicrobial property for use with a ceramic article. The method comprises fritting an antimicrobial formulation in a flux frit, providing least one unfritted antimicrobial component, providing a silver carrier in a glass matrix, and combining the flux frit, the at least one unfritted component, and the silver carrier in the glass matrix to form the ceramic glaze formulation. The silver carrier is combined at an addition rate based on a dry weight basis of the ceramic glaze formulation. A ceramic glaze additive formulation and ceramic glazed article are also provided.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Alvin Lamar Campbell, JR., Nathan L. Fields
  • Patent number: 10045537
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: August 14, 2018
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10045539
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: August 14, 2018
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 10045538
    Abstract: An antimicrobial ceramic glazing composition contains one or more antimicrobial agents disposed therein. Methods for making and using the glazing composition are disclosed, as well as substrates having a fired antimicrobial glaze thereon. The antimicrobial agents comprise metallic oxides, with a subset of the disclosed combinations exhibiting synergistic effect in fired glazes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: August 14, 2018
    Assignee: Microban Products Company
    Inventor: Alvin Lamar Campbell, Jr.
  • Patent number: 9974310
    Abstract: A method of making a ceramic glaze formulation having an antimicrobial property for use with a ceramic article. The method comprises fritting an antimicrobial formulation in a flux frit, providing least one unfritted antimicrobial component, providing a silver carrier in a glass matrix, and combining the flux frit, the at least one unfritted component, and the silver carrier in the glass matrix to form the ceramic glaze formulation. The silver carrier is combined at an addition rate based on a dry weight basis of the ceramic glaze formulation. A ceramic glaze additive formulation and ceramic glazed article are also provided.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 22, 2018
    Assignee: Microban Products Company
    Inventors: Alvin Lamar Campbell, Jr., Nathan L. Fields
  • Publication number: 20180027819
    Abstract: A biocidal additive formulation comprises a silver containing glass particle, and a combination of at least two metal based compounds. A metal in each of the metal based compounds is selected from the group consisting of silver, copper, zinc, mercury, tin, lead, bismuth, barium, cadmium, chromium, titanium, and a combination thereof. Another biocidal additive formulation comprises a silver containing glass particle, ZnO, and Bi2O3. A glass substrate possessing a durable biocidal property and an article possessing a durable biocidal property are also provided.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventor: Alvin Lamar Campbell, JR.