Patents by Inventor David Alfred Stone

David Alfred Stone 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).

  • PHOSPHATE RESISTANT ELECTRODEPOSITABLE COATING COMPOSITIONS
    Publication number: 20240076520
    Abstract: The present invention is directed to an electrodepositable coating composition comprising an electrodepositable binder comprising an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups, and a blocked polyisocyanate curing agent; a solubilized bismuth catalyst; and a guanidine; wherein the electrodepositable coating composition has a weight ratio of bismuth metal from the solubilized bismuth catalyst to guanidine of from 1.00:0.071 to 1.0:2.1 and/or a molar ratio of bismuth metal to guanidine of from 1.0:0.25 to 1.0:3.0. Also disclosed are methods of treating electrodepositable coating compositions, methods for making electrodepositable coating compositions, systems for coating a metal substrate, coatings, coated substrates, and methods of coating a substrate.
    Type: Application
    Filed: December 30, 2021
    Publication date: March 7, 2024
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Elizabeth Stephenie Brown-Tseng, Lee Brent Steely, Richard F. Syput, Corey James Dedomenic, Christopher Andrew Dacko, Egle Puodziukynaite, Kevin Thomas Sylvester, Benjamin Kabagambe, Katie Marie Cumpston, David Alfred Stone