Patents by Inventor Yves Lehmann

Yves Lehmann 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).

  • HYDROLYSIS RESISTANT CELLULAR MATERIAL, THE COMPOSITION AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20100260956
    Abstract: The use of at least one polyol (P) chosen from polyester and polyether polyols grafted by chains of at least one of the following: polystyrene, polyacrylonitrile and styrene/acrylonitrile copolymers and from polyester and polyether polyols in which at least one of the following: polystyrene, polyacrylonitrile and styrene/acrylonitrile copolymers is dispersed, as an incorporation into the formulation of the polyol constituent or of the polyol-polyamine constituent of a polyurethane forming the polymer matrix of a hydrolysis-resistant soft cellular material, said polyol or polyols (P) representing at least one part of said polyol constituent or at least one part of the polyol fraction of said polyol-polyamine constituent.
    Type: Application
    Filed: August 3, 2006
    Publication date: October 14, 2010
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX
    Inventor: Yves Lehmann
  • Structure for thermochromic glazing having a substance contained between two glass substrates
    Patent number: 7306833
    Abstract: Structure comprising at least two glass substrates (10, 11) separated by a distance (i), at least one substance (12) at least partly filling the space between the two substrates, and spacers (13) placed between the two substrates in order to maintain their spacing, characterized in that the spacers (13) are fastened to at least one of the substrates.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: December 11, 2007
    Assignee: Saint-Gobain Glass France
    Inventors: Dorothee Martin, Frank Marandon, Yves Lehmann, Jean-Louis Bonnet, Rino Messere
  • Method for production of a sealing joint gasket
    Publication number: 20070029739
    Abstract: According to the invention, the method for the in situ production of a sealing bead between a first element and a second element is characterized in that one element chosen from the first and second elements is provided with a sealing bead (4) of defined shape and defined cross section; said sealing bead is characterized by a high flexibility and the presence of a highly hydrophobic, but not siliconized, surface giving the assembly an excellent watertight seal.
    Type: Application
    Filed: May 18, 2004
    Publication date: February 8, 2007
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX S.A.
    Inventors: Laurent Jeanmart, Yves Lehmann, Dimitri Leroy
  • Material having sound-damping and adhesive properties
    Publication number: 20060182978
    Abstract: Damping material (3) having a loss factor tan ? at least equal to 0.25 and having two glass transition temperatures, at least one of which is substantially close to the use temperature of the material.
    Type: Application
    Filed: July 21, 2004
    Publication date: August 17, 2006
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS
    Inventors: Dimitri Leroy, Yves Lehmann
  • Structure, in particular for thermochromic glazing, comprising a substance contained between two glass substrates
    Publication number: 20040081775
    Abstract: Structure comprising at least two glass substrates (10, 11) separated by a distance (i), at least one substance (12) at least partly filling the space between the two substrates, and spacers (13) placed between the two substrates in order to maintain their spacing, characterized in that the spacers (13) are fastened to at least one of the substrates.
    Type: Application
    Filed: December 5, 2003
    Publication date: April 29, 2004
    Inventors: Dorothee Martin, Frank Marandon, Yves Lehmann, Jean-Louis Bonnet, Rino Messere