Patents Assigned to Molecular Surface Technologies, LLC
  • Electrochemical attachment of phosphonic acids to metallic substrates and antimicrobial medical devices containing same
    Patent number: 11540514
    Abstract: A method of preparing a modified-metal surface. The method includes preparing a solution of a phosphorous-based acid in a solvent; immersing a strip of the metal work piece into the solution of the phosphorous-based acid; immersing a strip of a reference metal into the solution of the phosphorous-based acid; supplying a voltage for a duration of time to prepare a phosphorous acid-modified metal work piece; removing the phosphorous acid-modified metal work piece; cleaning and drying the phosphorous acid-modified metal work piece; applying a chitosan solution to the surface in order to attach chitosan/modified chitosan to the phosphorous acid based modified surface; prepare the modified-metal surface; and cleaning and drying the modified-metal surface.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: January 3, 2023
    Assignee: MOLECULAR SURFACE TECHNOLOGIES, LLC
    Inventors: Randell Clevenger, Gordon D. Donald, Cheoljin Kim
  • Electrochemical attachment of phosphonic acids to metallic substrates and osteoconductive medical devices containing same
    Patent number: 11332840
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 17, 2022
    Assignee: Molecular Surface Technologies, LLC
    Inventors: Randell Clevenger, Gordon D. Donald
  • Electrochemical attachment of phosphonic acids to metallic substrates and osteoconductive medical devices containing same
    Patent number: 10876217
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: December 29, 2020
    Assignee: Molecular Surface Technologies, LLC
    Inventors: Randell Clevenger, Gordon D. Donald