Patents by Inventor Claire Berger

Claire Berger 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).

  • Patent number: 8173095
    Abstract: In a method of making a functionalized graphitic structure, a portion of a multi-layered graphene surface extending from a silicon carbide substrate is exposed to an acidic environment so as to separate graphene layers in a portion of the multi-layered graphene surface. The portion of the multi-layered graphene surface is exposed to a functionalizing material that binds to carbon atoms in the graphene sheets so that the functionalizing material remains between the graphene sheets, thereby generating a functionalized graphitic structure. The functionalized graphitic structure is dried in an inert environment.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: May 8, 2012
    Assignee: Georgia Tech Research Corporation
    Inventors: Walt A. de Heer, Xiaosong Wu, Michael Sprinkle, Claire Berger
  • Publication number: 20090236609
    Abstract: In a method of making a functionalized graphitic structure, a portion of a multi-layered graphene surface extending from a silicon carbide substrate is exposed to an acidic environment so as to separate graphene layers in a portion of the multi-layered graphene surface. The portion of the multi-layered graphene surface is exposed to a functionalizing material that binds to carbon atoms in the graphene sheets so that the functionalizing material remains between the graphene sheets, thereby generating a functionalized graphitic structure. The functionalized graphitic structure is dried in an inert environment.
    Type: Application
    Filed: September 30, 2008
    Publication date: September 24, 2009
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Walt A. de Heer, Xiaosong Wu, Michael Sprinkle, Claire Berger
  • Patent number: 7327000
    Abstract: In a method of making graphite devices, a preselected crystal face of a crystal is annealed to create a thin-film graphitic layer disposed against selected face. A preselected pattern is generated on the thin-film graphitic layer. A functional structure includes a crystalline substrate having a preselected crystal face. A thin-film graphitic layer is disposed on the preselected crystal face. The thin-film graphitic layer is patterned so as to define at least one functional structure.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: February 5, 2008
    Assignee: Georgia Tech Research Corp.
    Inventors: Walt A. DeHeer, Claire Berger, Phillip N. First
  • Publication number: 20060099750
    Abstract: In a method of making graphite devices, a preselected crystal face of a crystal is annealed to create a thin-film graphitic layer disposed against selected face. A preselected pattern is generated on the thin-film graphitic layer. A functional structure includes a crystalline substrate having a preselected crystal face. A thin-film graphitic layer is disposed on the preselected crystal face. The thin-film graphitic layer is patterned so as to define at least one functional structure.
    Type: Application
    Filed: December 14, 2005
    Publication date: May 11, 2006
    Inventors: Walt DeHeer, Claire Berger, Phillip First
  • Patent number: 7015142
    Abstract: In a method of making graphite devices, a preselected crystal face of a crystal is annealed to create a thin-film graphitic layer disposed against selected face. A preselected pattern is generated on the thin-film graphitic layer. A functional structure includes a crystalline substrate having a preselected crystal face. A thin-film graphitic layer is disposed on the preselected crystal face. The thin-film graphitic layer is patterned so as to define at least one functional structure.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: March 21, 2006
    Assignee: Georgia Tech Research Corporation
    Inventors: Walt A. DeHeer, Claire Berger, Phillip N. First
  • Publication number: 20040253820
    Abstract: In a method of making graphite devices, a preselected crystal face of a crystal is annealed to create a thin-film graphitic layer disposed against selected face. A preselected pattern is generated on the thin-film graphitic layer. A functional structure includes a crystalline substrate having a preselected crystal face. A thin-film graphitic layer is disposed on the preselected crystal face. The thin-film graphitic layer is patterned so as to define at least one functional structure.
    Type: Application
    Filed: June 3, 2004
    Publication date: December 16, 2004
    Inventors: Walt A. DeHeer, Claire Berger, Phillip N. First
  • Patent number: 6103023
    Abstract: Thin film of quasicrystalline alloy having a thickness of between approximately 0.01 and 10 .mu.m comprising one or more quasicrystalline phases having a volume which represents at least 60% by volume of the quasicrystalline alloy, a quasicrystalline phase being either a quasicrystalline phase which exhibits rotational symmetries normally incompatible with a translational symmetry, i.e., symmetries with a 5-, 8-, 10- and 12-fold rotation axis, or an approximant phase or an approximant compound which is a true crystal, the approximant phase or compound having a crystallographic structure which remains compatible with the translational symmetry, but which has, in an electron diffraction photograph, diffraction patterns whose symmetry is close to that of 5-, 8-, 10- or 12-fold rotation axes; wherein the alloy has the following nominal composition, which is given in atomic percentages: Al.sub.a Re.sub.r Si.sub.s X.sub.d Mn.sub.m in which X represents at least one element chosen from B, C, P, S and Ge; 15.ltoreq.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: August 15, 2000
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Fran.cedilla.oise Cyrot-Lackmann, Thierry Grenet, Claire Berger, Guy Fourcaudot, Claire Gignoux