Patents by Inventor Christopher Drover

Christopher Drover 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).

  • Osmotic separation systems and methods
    Patent number: 10406482
    Abstract: The invention generally relates to osmotically driven membrane systems and processes and more particularly to systems and processes for handling feed streams without pretreatment and increased brine concentration for zero liquid discharge, including forward osmosis separation (FO), direct osmotic concentration (DOC), pressure-assisted forward osmosis (PAFO), and pressure retarded osmosis (PRO). The system includes: a plurality of forward osmosis units, each having a semi-permeable membrane assembly and a tank; and a separation system in fluid communication with the plurality of forward osmosis units and configured to separate the dilute draw solution into the concentrated draw solution and a solvent system.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 10, 2019
    Assignee: OASYS WATER LLC
    Inventors: Nathan T. Hancock, Christopher Drover, Marek S. Nowosielski-Slepowron, Garrett Akie
  • Water treatment systems and methods
    Patent number: 10384967
    Abstract: Separation processes using osmotically driven membrane systems are disclosed generally involving the extraction of solvent from a first solution to concentrate a solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. Pre-treatment and post-treatment may also enhance the osmotically driven membrane processes.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 20, 2019
    Assignee: OASYS WATER LLC
    Inventors: Nathan T. Hancock, Marek S. Nowosielski-Slepowron, Zachary Helm, Christopher Drover, George Bischoff
  • SYSTEMS AND METHODS FOR IMPROVING PERFORMANCE OF FORWARD OSMOSIS SYSTEMS
    Publication number: 20190185350
    Abstract: A system feed inlet is connected to a forward osmosis (FO) element bank. A system feed transfer directs fluid flow from the FO element bank through a system feed outlet to a second FO element bank through a system feed inlet. A system draw transfer directs indirect fluid flow from the second FO element bank to the first FO element bank.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Inventors: Christopher DROVER, Leah STASCHKE, Eric MAXWELL, Seth MCFAYDEN
  • WATER TREATMENT SYSTEMS AND METHODS
    Publication number: 20170210656
    Abstract: Separation processes using osmotically driven membrane systems are disclosed generally involving the extraction of solvent from a first solution to concentrate a solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. Pre-treatment and post-treatment may also enhance the osmotically driven membrane processes.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Inventors: Nathan T. Hancock, Marek S. Nowosielski-Slepowron, Zachary Helm, Christopher Drover, George Bischoff
  • OSMOTIC SEPARATION SYSTEMS AND METHODS
    Publication number: 20170028348
    Abstract: The invention generally relates to osmotically driven membrane systems and processes and more particularly to systems and processes for handling feed streams without pretreatment and increased brine concentration for zero liquid discharge, including forward osmosis separation (FO), direct osmotic concentration (DOC), pressure-assisted forward osmosis (PAFO), and pressure retarded osmosis (PRO). The system includes: a plurality of forward osmosis units, each having a semi-permeable membrane assembly and a tank; and a separation system in fluid communication with the plurality of forward osmosis units and configured to separate the dilute draw solution into the concentrated draw solution and a solvent system.
    Type: Application
    Filed: March 31, 2015
    Publication date: February 2, 2017
    Inventors: Nathan T. Hancock, Christopher Drover, Marek S. Nowosielski-Slepowron, Garrett Akie
  • DRAW SOLUTIONS AND DRAW SOLUTE RECOVERY FOR OSMOTICALLY DRIVEN MEMBRANE PROCESSES
    Publication number: 20150273396
    Abstract: The invention generally relates to osmotically driven membrane processes and more particularly to draw solutions and draw solute recovery techniques for osmotically driven membrane processes.
    Type: Application
    Filed: November 13, 2013
    Publication date: October 1, 2015
    Inventors: Nathan T. Hancock, Christopher Drover, Zachary Helm
  • SYSTEMS AND METHODS FOR REPAIRING MEMBRANES AND IMPROVING PERFORMANCE OF OSMOTICALLY DRIVEN MEMBRANE SYSTEMS
    Publication number: 20150136676
    Abstract: The invention relates to repairing and/or modifying a surface of a membrane in osmotically driven membrane systems by the introduction of one or more substances to the membrane.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Zachary Helm, Christopher Drover, Inga B. Elkina, Nathan T. Hancock, Peter F. Moran, William Anthony Phillip
  • OSMOTIC SEPARATION SYSTEMS AND METHODS
    Publication number: 20140224716
    Abstract: Separation processes using osmotically driven membrane systems are disclosed generally involving the extraction of solvent from a first solution to concentrate solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 14, 2014
    Inventors: Nathan Hancock, Marek S. Nowosielski-Slepowron, Christopher Drover