Patents by Inventor Pierre Steinmetz

Pierre Steinmetz 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).

  • Use of nickel compounds as vanadium corrosion inhibitors
    Publication number: 20030159338
    Abstract: The invention concerns inhibition of vanadium corrosion of thermal equipment materials burning vanadium-contaminated liquid fuels using nickel compounds. The invention is applicable in particular to liquid fuel combustion in gas turbines.
    Type: Application
    Filed: March 21, 2003
    Publication date: August 28, 2003
    Inventors: Michel Moliere, Emmanuel Rocca, Pierre Steinmetz
  • Water soluble composition as metal surface coating in the form of dry films proof to atmospheric corrosion
    Patent number: 6464763
    Abstract: A composition for use in forming a dry film coating on metal surfaces to at least temporarily protect the surfaces from oxidation comprises at least 20% by weight of a combination of at least one saturated linear carboxylic monoacid with at least one unsaturated linear carboxylic monoacid. The monoacids are in the form of alkaline, alkaline-earth or amine salts. The carbon chain of each acid comprises an uneven number of carbon atoms varying from 5 to 21. At least 0.5% by weight of a triazole derivative can be added to enhance the anti-corrosion effect. The composition is water-soluble and the dry protective film can be formed by diluting the composition in water, applying the diluted composition to a metal surface and then air drying it.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: October 15, 2002
    Assignee: Elf Antar France
    Inventors: Pierre Steinmetz, Jacques Cotteret, Corinne Chauvineau
  • Corrosion-resistant alloy, preparation process and article made from the alloy
    Patent number: 6254660
    Abstract: The invention relates to a Cr2O3-forming alloy that is resistant to oxidization and/or corrosion at high temperature, especially by glass, characterized in that it contains, in dispersion within its matrix, chromium oxide Cr2O3, or a precursor of this oxide. This alloy can be prepared by powder metallurgy using a process of hot consolidation of metallic powders, in particular by sintering. The alloy is especially suitable for articles which are to be used in a high-temperature oxidizing or corrosive environment.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: July 3, 2001
    Assignee: Saint-Gobain Recherche
    Inventors: Jean-Luc Bernard, Michel Bousquet, Olivier Kessler, Pierre Steinmetz
  • Carboxylic acid-based corrosion-inhibiting composition and application thereof in corrosion prevention
    Patent number: 5507861
    Abstract: There is provided a corrosion inhibiting composition comprising carboxylic acids or derivatives thereof wherein said acids are monocarboxylic acids containing an odd number of carbon atoms, and the application thereof to the prevention of corrosion.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: April 16, 1996
    Assignee: Elf Atochem S.A. and Haber Partners Sarl
    Inventors: Henri-Jean Caupin, Harry Seidl, Pierre Steinmetz
  • Hydrazine bath for chemical deposition of platinum and/or palladium, and method of manufacturing such a bath
    Patent number: 5085693
    Abstract: The bath contains an oxalate of the metal or of each of the metals to be deposited and hydrazine as a reducing agent, together with ethylenediamine as a complexing agent and at least one stabilizing agent, said bath being highly basic and having an autocatalytic effect.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: February 4, 1992
    Assignee: Office National d'Etudes et de Recherches Aerospatiales
    Inventors: Pierre Josso, Serge Alperine, Pierre Steinmetz, Anne Constantini-Friant