Patents by Inventor Michael P. Mehlhoff

Michael P. Mehlhoff 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 for treatment of a wastewater stream containing dissolved compounds or ions
    Patent number: 11286190
    Abstract: The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: March 29, 2022
    Assignee: Columbia Water Holdings, Inc.
    Inventors: Benjamin Roberts, Lee Shull, Michael P. Mehlhoff
  • Method for treatment of a wastewater stream containing dissolved compounds or ions
    Patent number: 10669179
    Abstract: The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: June 2, 2020
    Assignee: Columbia Water Holdings, Inc.
    Inventors: Benjamin Roberts, Lee Shull, Michael P. Mehlhoff
  • METHOD AND APPARATUS FOR REMOVING UNWANTED DISSOLVED CHEMICALS FROM LIQUIDS
    Publication number: 20160145133
    Abstract: The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 26, 2016
    Inventors: Benjamin Roberts, Lee Shull, Michael P. Mehlhoff