Patents by Inventor Thomas Martin Dumbaugh

Thomas Martin Dumbaugh 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).

  • Combination biological contactor and self-backwashing filter systems
    Patent number: 11130693
    Abstract: A combination biological contactor and self-backwashing filter system for water treatment is disclosed. The system may include a treatment vessel defining an upper chamber and a lower chamber. A biological contactor may be disposed within the upper chamber, and a filter may be disposed in the lower chamber. A contactor outlet conduit and inlet manifold may be used to transfer water from the biological contactor to filter cells within the filter.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: September 28, 2021
    Assignee: WesTech Engineering, LLC
    Inventors: Thomas Martin Dumbaugh, Eric Allen Lawrence, Rand S Faaborg, Darrell Wayne Christianson, Brian Lee Primrose, Rene Ann Carson