Patents by Inventor James E. Hollen

James E. Hollen 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 and apparatus for achieving maximum yield in the electrolytic preparation of group IV and V hydrides
    Patent number: 8591720
    Abstract: A method for generating hydride gas of metal M1 in electrochemical cell comprising cathode comprising metal M1, sacrificial anode comprising metal M2, an initial concentration of aqueous electrolyte solution comprising metal hydroxide M3OH, wherein the sacrificial metal anode electrochemically oxidizes in the presence of the aqueous electrolyte solution to form metal salt, and hydride gas of metal M1 is formed by reducing the metal M1 of the cathode. The method also comprises steps of determining solubility profile curves of metal salt as M3OH is consumed and metal oxide is formed by oxidation reaction at various concentrations of M3OH; determining the maximum concentration of M3OH that does not yield a concentration of metal salt that precipitates out of the electrolyte solution; and choosing a concentration of M3OH that is in the range of at and within 5% less than the maximum concentration of M3OH to be the initial concentration of M3OH.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: November 26, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Reinaldo Mario Machado, Christopher L. Hartz, James E. Hollen, Rebecca J. Mohr, George L. Ryals
  • Method and Apparatus for Achieving Maximum Yield in the Electrolytic Preparation of Group IV and V Hydrides
    Publication number: 20120205252
    Abstract: A method for generating hydride gas of metal M1 in electrochemical cell comprising cathode comprising metal M1, sacrificial anode comprising metal M2, an initial concentration of aqueous electrolyte solution comprising metal hydroxide M3OH, wherein the sacrificial metal anode electrochemically oxidizes in the presence of the aqueous electrolyte solution to form metal salt, and hydride gas of metal M1 is formed by reducing the metal M1 of the cathode. The method also comprises steps of determining solubility profile curves of metal salt as M3OH is consumed and metal oxide is formed by oxidation reaction at various concentrations of M3OH; determining the maximum concentration of M3OH that does not yield a concentration of metal salt that precipitates out of the electrolyte solution; and choosing a concentration of M3OH that is in the range of at and within 5% less than the maximum concentration of M3OH to be the initial concentration of M3OH.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 16, 2012
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Reinaldo Mario Machado, Christopher L. Hartz, James E. Hollen, Rebecca J. Mohr, George L. Ryals
  • Method and apparatus for achieving maximum yield in the electrolytic preparation of group IV and V hydrides
    Patent number: 8021536
    Abstract: A method for generating a hydride gas of metal M1 in an electrochemical cell comprising a cathode comprising metal M1, a sacrificial anode comprising metal M2, an initial concentration of aqueous electrolyte solution comprising a metal hydroxide, M3OH, wherein the sacrificial metal anode electrochemically oxidizes in the presence of the aqueous electrolyte solution comprising M3OH to form a metal salt, and the hydride gas of metal M1 is formed by reducing the metal M1 of the cathode. The method comprises the steps of determining solubility profile curves of the metal salt as the M3OH is consumed and the metal oxide is formed by the oxidation reaction at various concentrations of M3OH; determining a maximum concentration of M3OH that, as it is consumed, does not yield a concentration of metal salt that precipitates out of the electrolyte solution; and choosing a concentration of M3OH that is in the range of at and within 5% less than the maximum concentration of M3OH to be the initial concentration of M3OH.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 20, 2011
    Assignee: Air Products and Chemical, Inc.
    Inventors: Reinaldo Mario Machado, Christopher L. Hartz, James E. Hollen, Rebecca J. Mohr, George L. Ryals
  • Method and Apparatus for Achieving Maximum Yield in the Electrolytic Preparation of Group IV and V Hydrides
    Publication number: 20070240997
    Abstract: A method for generating a hydride gas of metal M1 in an electrochemical cell comprising a cathode comprising metal M1, a sacrificial anode comprising metal M2, an initial concentration of aqueous electrolyte solution comprising a metal hydroxide, M3OH, wherein the sacrificial metal anode electrochemically oxidizes in the presence of the aqueous electrolyte solution comprising M3OH to form a metal salt, and the hydride gas of metal M1 is formed by reducing the metal M1 of the cathode. The method comprises the steps of determining solubility profile curves of the metal salt as the M3OH is consumed and the metal oxide is formed by the oxidation reaction at various concentrations of M3OH; determining a maximum concentration of M3OH that, as it is consumed, does not yield a concentration of metal salt that precipitates out of the electrolyte solution; and choosing a concentration of M3OH that is in the range of at and within 5% less than the maximum concentration of M3OH to be the initial concentration of M3OH.
    Type: Application
    Filed: March 19, 2007
    Publication date: October 18, 2007
    Inventors: Reinaldo Mario Machado, Christopher L. Hartz, James E. Hollen, Rebecca J. Mohr, George L. Ryals