Patents by Inventor Earle Barnhart

Earle Barnhart 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).

  • Publication number: 20240034694
    Abstract: Devices, systems and methods that provide for separation of urine. The separated urine can be processed and used as a fertilizer. The urine-based fertilizer provides a lower cost, environmentally responsible, alternative to synthetic fertilizer with a guaranteed constant and locally available supply. Additionally, the devices, systems and methods reduce the use of fresh water associated with toilet flushing.
    Type: Application
    Filed: July 11, 2023
    Publication date: February 1, 2024
    Inventors: Hilda Maingay, Earle Barnhart