Patents by Inventor Stephan Josef Peter Kress

Stephan Josef Peter Kress 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).

  • Water extraction using a directional solvent
    Patent number: 9428404
    Abstract: Purified water can be obtained via a continuous or semi-continuous process by mixing a liquid composition (e.g., sea water or produced frac water) including water with a directional solvent to selectively dissolve water from the liquid composition into the directional solvent. The concentrated remainder of the liquid composition (e.g., brine) is removed, and the water is precipitated from the directional solvent and removed in a purified form. The solvent is then reused as the process is repeated in a continuous or semi-continuous operation.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: August 30, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Anurag Bajpayee, Stephan Josef Peter Kress, Kevin Kleinguetl, Gang Chen, Michael Fowler