Patents by Inventor Daron Gareth Evans

Daron Gareth Evans 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).

  • Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams
    Patent number: 11970411
    Abstract: A method of treating aqueous, preferably concentrated, waste streams with a unique combination of steps in a way that is easily scalable and able to be used with batch or continuous flows. The method comprises at least the following steps: Adding at least one precipitating agent to the waste water to produce precipitated solids; and removing the precipitated solids from the waste water using a forward flushable membrane to remove the precipitate solids.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 30, 2024
    Assignee: GARRATT-CALLAHAN COMPANY
    Inventors: E. H. Kelle Zeiher, Henri Robert Asbell, James E Gamlen, Daron Gareth Evans
  • Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams
    Patent number: 11203536
    Abstract: A method of treating aqueous, preferably concentrated, waste streams with a unique combination of steps in a way that is easily scalable and able to be used with batch or continuous flows. The method comprises at least the following steps: Adding at least one precipitating agent to the waste water to produce precipitated solids; and removing the precipitated solids from the waste water using a forward flushable membrane to remove the precipitate solids.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: December 21, 2021
    Assignee: Garratt-Callahan Company
    Inventors: E. H. Kelle Zeiher, Henri Robert Asbell, James E Gamlen, Daron Gareth Evans