Patents by Inventor Al Marshall

Al Marshall 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).

  • Coating methods and materials to reduce aging of SiC hot surface ignitors
    Patent number: 11685699
    Abstract: An ignitor that includes at least one layer of silicon dioxide coating a silicon carbide material, methods of making and using the ignitor, and a kit that includes the ignitor are provided. The silicon dioxide coating is not intended to be removed prior to use. Rather, it is intended to remain on the ignitor during use.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 27, 2023
    Assignee: CoorsTek, Inc.
    Inventors: Michael J. Hanagan, Al Marshall
  • COATING METHODS AND MATERIALS TO REDUCE AGING OF SIC HOT SURFACE IGNITORS
    Publication number: 20210017091
    Abstract: An ignitor that includes at least one layer of silicon dioxide coating a silicon carbide material, methods of making and using the ignitor, and a kit that includes the ignitor are provided. The silicon dioxide coating is not intended to be removed prior to use. Rather, it is intended to remain on the ignitor during use.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Michael J. Hanagan, Al Marshall