Patents by Inventor Robert N. Grantham

Robert N. Grantham 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).

  • Method and composition for treating substrates
    Patent number: 6821631
    Abstract: A method of treating substrates, such as wood, including the steps of applying an alkali silicate solution to one or more substrates and applying an alkali borate solution with boric oxide (B2O3) content to the substrates. Substrates that have been treated using the present method include a borate-silicate polymer within the substrate. When the present substrates are wood, wood products, or green lumber, they may be used to build structures.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: November 23, 2004
    Assignee: Wood treatment Products, Inc.
    Inventors: Robert N. Grantham, Robert R. Weaver, III
  • Method and composition for treating substrates
    Publication number: 20030118810
    Abstract: A method of treating substrates, such as wood, including the steps of applying an alkali silicate solution to one or more substrates and applying an alkali borate solution with boric oxide (B2O3) content to the substrates. Substrates that have been treated using the present method include a borate-silicate polymer within the substrate. When the present substrates are wood, wood products, or green lumber, they may be used to build structures.
    Type: Application
    Filed: October 28, 2002
    Publication date: June 26, 2003
    Inventors: Robert N. Grantham, James R. Weaver
  • Method and composition for treating wood
    Publication number: 20030104135
    Abstract: A method and a composition for treating wood products and a treated wood product prepared according to such methods where wood is treated by providing a wood to be treated, providing a treatment solution which includes an alkali silicate and a sealant composition, pressure treating the wood with the treatment solution, and applying energy to the treated wood.
    Type: Application
    Filed: October 28, 2002
    Publication date: June 5, 2003
    Inventors: Robert N. Grantham, James R. Weaver