Patents by Inventor Michael David Hurwitz

Michael David Hurwitz 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).

  • Devices and method for smelterless recycling of lead acid batteries
    Patent number: 11239507
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 1, 2022
    Assignee: AQUA METALS INC.
    Inventors: Brian Dougherty, Michael John King, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz
  • Electrodeposited lead composition, methods of production, and uses
    Patent number: 10689769
    Abstract: The inventive subject matter is directed to continuous electrochemical production of highly pure micro- or nanostructured lead that at least partially encloses the electroprocessing solvent and molecular hydrogen and optional guest compounds to form a mixed matrix. Such compositions are particularly suitable for cold forming of various structures and/or for alloy and composite material production.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 23, 2020
    Assignee: Aqua Metals Inc.
    Inventors: Stephen R. Clarke, Michael John King, Brian Dougherty, Michael David Hurwitz
  • Devices and method for smelterless recycling of lead acid batteries
    Patent number: 10665907
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining, and spent electroprocessing solvent can be recycled to the recovery process.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: May 26, 2020
    Assignee: Aqua Metals Inc.
    Inventors: Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Michael John King, Selwyn Mould
  • Devices and method for smelterless recycling of lead acid batteries
    Patent number: 10566665
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining, and spent electroprocessing solvent can be recycled to the recovery process.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: February 18, 2020
    Assignee: Aqua Metals Inc.
    Inventors: Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Michael John King, Selwyn Mould
  • Devices and Method for Smelterless Recycling of Lead Acid Batteries
    Publication number: 20190267681
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Brian Dougherty, Michael John King, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz
  • Devices and method for smelterless recycling of lead acid batteries
    Patent number: 10340561
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 2, 2019
    Assignee: Aqua Metals Inc.
    Inventors: Brian Dougherty, Michael John King, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz
  • Electrodeposited Lead Composition, Methods of Production, and Uses
    Publication number: 20180127888
    Abstract: The inventive subject matter is directed to continuous electrochemical production of highly pure micro- or nanostructured lead that at least partially encloses the electroprocessing solvent and molecular hydrogen and optional guest compounds to form a mixed matrix. Such compositions are particularly suitable for cold forming of various structures and/or for alloy and composite material production.
    Type: Application
    Filed: May 13, 2016
    Publication date: May 10, 2018
    Inventors: Stephen R. Clarke, Michael John King, Brian Dougherty, Michael David Hurwitz
  • Devices and Method for Smelterless Recycling of Lead Acid Batteries
    Publication number: 20180069276
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining, and spent electroprocessing solvent can be recycled to the recovery process.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 8, 2018
    Inventors: Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Michael John King, Selwyn Mould
  • Improved Devices and Method for Smelterless Recycling of Lead Acid Batteries
    Publication number: 20170352927
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
    Type: Application
    Filed: May 13, 2015
    Publication date: December 7, 2017
    Inventors: Brian Dougherty, Michael John King, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz
  • Method for smelterless recycling of lead acid batteries
    Patent number: 9837689
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining and spent electroprocessing solvent can be recycled to the recovery process.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: December 5, 2017
    Assignee: Aqua Metals Inc.
    Inventors: Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Michael John King, Selwyn Mould
  • Rechargeable copper-zinc cell
    Patent number: 9647267
    Abstract: A rechargeable cell comprising h combination a bipolar electrode, a zinc electrolyte, a copper electrolyte and metal-ion impermeable, polymer electrochemical membrane separator, wherein the zinc electrolyte and the copper electrolyte are separated from each other by the bipolar electrode on one side and by the membrane separator on the other side. A battery comprising at least one said rechargeable cell.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: May 9, 2017
    Assignee: CUMULUS ENERGY STORAGE LIMITED
    Inventors: Michael David Hurwitz, Darron Rolfe Brackenbury
  • Devices and Method for Smelterless Recycling of Lead Acid Batteries
    Publication number: 20160294024
    Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining and spent electroprocessing solvent can be recycled to the recovery process.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 6, 2016
    Inventors: Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Michael John King, Selwyn Mould
  • RECHARGEABLE COPPER-ZINC CELL
    Publication number: 20160013485
    Abstract: A rechargeable cell comprising h combination a bipolar electrode, a zinc electrolyte, a copper electrolyte and metal-ion impermeable, polymer electrochemical membrane separator, wherein the zinc electrolyte and the copper electrolyte are separated from each other by the bipolar electrode on one side and by the membrane separator on the other side. A battery comprising at least one said rechargeable cell.
    Type: Application
    Filed: February 17, 2014
    Publication date: January 14, 2016
    Inventors: Michael David Hurwitz, Darron Rolfe Brackenbury