Patents by Inventor Tom Earl

Tom Earl 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 system for manufacturing silicon nitride from waste silicon kerf
    Patent number: 12570531
    Abstract: A method for manufacturing silicon nitride from waste silicon kerf includes the steps of reducing agglomerations in the waste silicon kerf, adding and mixing calcium oxide to the waste silicon kerf, placing the waste silicon kerf in a ceramic crucible, placing the ceramic crucible in a furnace, heat treating the waste silicon kerf in the ceramic crucible in the furnace under a vacuum to disassociate silicon dioxide into silicon and silicon monoxide, and heat treating the waste silicon kerf in the ceramic crucible in the furnace while introducing nitrogen gas into the furnace to create the silicon nitride.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: March 10, 2026
    Assignee: CRS-SPV Inc.
    Inventors: William Lawrence, Michael Korzenski, Travis Hendren, Tom Earl, Jerry Jernigan, Ray Sibley