Patents by Inventor Laurent Kirchhoff

Laurent Kirchhoff 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).

  • COMPACT METAL OXIDE BLOCK AND RELATED MANUFACTURING METHOD
    Publication number: 20170129817
    Abstract: The invention relates to a composition consisting of a mixture of one or more metal oxides having the formula MxOyUi, in which M is a metal atom selected from among iron, aluminum, titanium, manganese, zinc, copper, zirconium, nickel, and lead, O is an oxygen atom, U is an impurity, and x, y, and i are mole fractions comprised between 0 and 1, with x+y>80%, said composition taking the form of a three-dimensional compacted tablet having an apparent density greater than or equal to 2, an apparent porosity comprised between 3% and 40%, and a diametral breaking strength greater than or equal to 250 kPa.
    Type: Application
    Filed: April 22, 2015
    Publication date: May 11, 2017
    Inventors: Christian COENRAETS, Christophe DUPONT, Laurent KIRCHHOFF
  • Method for compacting a powdery composition at constant volume
    Patent number: 8734692
    Abstract: A method for compacting powdery compositions wherein the composition is compacted down to a reduced volume and the composition is then maintained at constant volume until the solid compact product is obtained.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: May 27, 2014
    Assignee: Eurotab
    Inventors: Paul Branlard, Jacques Brosse, Laurent Kirchhoff, Gilles Rubinstenn
  • METHOD FOR COMPACTING A POWDERY COMPOSITION AT CONSTANT VOLUME
    Publication number: 20100297320
    Abstract: A method for compacting powdery compositions wherein the composition is compacted down to a reduced volume and the composition is then maintained at constant volume until the solid compact product is obtained.
    Type: Application
    Filed: October 10, 2008
    Publication date: November 25, 2010
    Inventors: Paul Branlard, Jacques Brosse, Laurent Kirchhoff, Gilles Rubinstenn