Patents by Inventor Howard D. Glicksman

Howard D. Glicksman 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 making gold powders by aerosol decomposition
    Patent number: 5616165
    Abstract: The invention is directed to a method for the manufacture of substantially fully densified, finely divided particles of gold wherein the operating temperature is below the melting point of gold.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: April 1, 1997
    Assignees: E. I. Du Pont de Nemours and Company, University of New Mexico
    Inventors: Howard D. Glicksman, Toivo T. Kodas, Diptarka Majumdar
  • Method for making silver powder by aerosol decomposition
    Patent number: 5439502
    Abstract: A method for the manufacture of finely divided silver particles comprising the sequential steps:A. Forming an unsaturated solution of thermally decomposable silver-containing compound in a volatilizable solvent;B. Forming an aerosol from the unsaturated solution and a carrier gas;C. Heating the aerosol to a temperature above the decomposition temperature of the silver compound, but below the melting point of silver metal by which the silver compound is decomposed to form finely divided particles of pure densified silver; andD. Separating the precipitated silver particles from the carrier gas, reaction by-products and solvent voltilization products.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 8, 1995
    Assignees: E. I. Du Pont de Nemours and Company, University of New Mexico
    Inventors: Toivo T. Kodas, Timothy L. Ward, Howard D. Glicksman
  • Method for making silver-palladium alloy powders by aerosol decomposition
    Patent number: 5429657
    Abstract: A method for the manufacture of fully densified, finely divided particles of silver-palladium alloy comprising the sequential steps:A. Forming an unsaturated solution of a mixture of thermally decomposable silver-containing compound and a thermally decomposable palladium-containing compound in a thermally volatilizable solvent;B. Forming an aerosol consisting essentially of finely divided droplets of the solution from step A dispersed in a carrier gas, the droplet concentration which is below the concentration where collisions and subsequent coalescence of the droplets results in a 10% reduction in droplet concentration;C.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: July 4, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Howard D. Glicksman, Toivo T. Kodas, Tammy C. Pluym
  • Method for making palladium and palladium oxide powders by aerosol decomposition
    Patent number: 5421854
    Abstract: A method for the manufacture of finely divided particles of palladium, palladium oxide or mixtures thereof comprising the sequential steps:A. Forming an unsaturated solution of thermally decomposable palladium-containing compound in a thermally volatilizable solvent;B. Forming an aerosol consisting essentially of finely divided droplets of the solution from step A. dispersed in an inert carrier gas;C. Heating the aerosol to an operating temperature above the decomposition temperature of the palladium-containing compound, but below the melting point of palladium metal by which finely divided particles of palladium, palladium oxide or mixtures thereof are formed and densified; andD. Separating the particles of palladium, palladium oxide or mixtures thereof from the carrier gas, reaction by-products and solvent volatilization products.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: June 6, 1995
    Assignees: E. I. Du Pont de Nemours and Company, University of New Mexico
    Inventors: Toivo T. Kodas, Shirley W. Lyons, Howard D. Glicksman
  • Process for making finely divided, dense packing, spherical shaped silver particles
    Patent number: 5389122
    Abstract: A method for the preparation of finely divided, dense packing, spherical shaped silver particles comprising the sequential steps of:(1) reacting an aqueous mixture of a silver salt with an alkanolamine to form a homogeneous aqueous solution of a dissolved silver alkanolamine complex;(2) preparing an aqueous solution of a reducing agent and, optionally, an alkanolamine; and(3) mixing together the silver alkanolamine complex solution and the reducing agent alkanolamine solution at a buffered pH and a temperature of 10.degree. C. to 100.degree. C. to form finely divided spherical silver particles.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: February 14, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Howard D. Glicksman
  • Process for making finely divided particles of silver metals
    Patent number: 5188660
    Abstract: A reductive process for making finely divided silver particles in which the silver particles are precipitated from an aqueous acid solution of silver salt containing silica sol.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: February 23, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Guray Tosun, Howard D. Glicksman
  • Process for making finely divided particles of silver metal
    Patent number: 4979985
    Abstract: A reductive process for making finely divided silver particles in which the silver particles are precipitated from an aqueous acidic solution of silver salt, gelatin and alkyl acid phosphate.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: December 25, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Guray Tosun, Howard D. Glicksman