Patents by Inventor David Johathan Tafoya

David Johathan Tafoya 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 of removing PVA from a 3D printing process
    Patent number: 11565470
    Abstract: A method of removing polyvinyl alcohol (PVA)-based scaffold from a 3D printed part formed by a 3D printing process that renders a finished product for immediate use. The method principally involves preparing an acidic-aqueous cleansing solution comprising a mixture of carboxylic acid and water; immersing the 3D printed part conventionally bonded with PVA-based scaffold into the acidic-aqueous cleansing solution for a select amount of time to break down and remove the PVA-based scaffold from the 3D printed part; and adding to the acidic-aqueous cleansing solution a select quantity of polymeric carbohydrate to crosslink and bond with the PVA-based scaffold to effect dissolution thereof into the acidic-aqueous cleansing solution.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 31, 2023
    Inventor: David Johathan Tafoya