Patents by Inventor Pierre Braunstein

Pierre Braunstein 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 zwitterionic molecules for forming a hole or electron transport layer
    Patent number: 9349958
    Abstract: The invention relates to the use of zwitterionic molecules for forming a hole or electron transport layer. The preferred zwitterionic molecules of the invention are derivatives of p-benzoquinonemonoimines. The invention is useful in the field of electronic devices in particular.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: May 24, 2016
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE STRASBOURG, UNIVERSITY OF NEBRASKA LINCOLN
    Inventors: Bernard Doudin, Pierre Braunstein, Lucie Routaboul, Guillaume Dalmas, Zhengzheng Zhang, Peter Dowben
  • USE OF ZWITTERIONIC MOLECULES FOR FORMING A HOLE OR ELECTRON TRANSPORT LAYER
    Publication number: 20130193426
    Abstract: The invention relates to the use of zwitterionic molecules for forming a hole or electron transport layer. The preferred zwitterionic molecules of the invention are derivatives of p-benzoquinonemonoimines. The invention is useful in the field of electronic devices in particular.
    Type: Application
    Filed: August 23, 2011
    Publication date: August 1, 2013
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITY OF NEBRASKA LINCOLN, UNIVERSITE DE STRASBOURG
    Inventors: Bernard Doudin, Pierre Braunstein, Lucie Routaboul, Guillaume Dalmas, Zhengzheng Zhang, Peter Dowben
  • Organometallic complexes that comprise bidentate chelating ligands that combine a nitrogen-containing heterocyclic compound with an alcohol and their use for catalyzing the oligomerization of olefins
    Patent number: 7199075
    Abstract: A catalyst for the oligomerization of olefins, especially ethylene contains: at least one nickel complex e.g. Li2 Ni X2 that results from bringing into contact a nickel salt e.g. a nickel carboxylate with a bidentate chelating ligand containing a nitrogen-containing heterocyclic compound with an alcohol e.g. Ha-C(OH)RR?; and at least one hydrocarbylaluminum compound from tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds or at least one aluminoxane.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: April 3, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
  • Organometallic complexes comprising phosphonite ligands, and their use in catalyzing olefin oligomerization
    Patent number: 6864209
    Abstract: A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8? and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: March 8, 2005
    Assignee: Institut Francais du Petrole
    Inventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
  • Organometallic complexes comprising phosphonite ligands, and their use in catalyzing olefin oligomerization
    Publication number: 20030216251
    Abstract: A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligand, with at least one hydrocarbylaluminum compound in a small proportion with respect to the nickel and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.
    Type: Application
    Filed: March 31, 2003
    Publication date: November 20, 2003
    Applicant: Institut Francais du Petrole
    Inventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
  • Apparatus for printing any documents and making them unfalsifiable
    Patent number: 5575214
    Abstract: An apparatus for printing any documents and making them unfalsifiable and comprising a casing fitted on the body of a printer at its part receiving the discharged and printed documents and which contains means for heating one side of the printed document for the impregnation and the transfer of the printing ink throughout the thickness of the document so as to make appear on the other side thereof an exact replica with inverted writing of the printings previously made on the document such as a bank document, cheque letter or transfer order.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: November 19, 1996
    Assignees: Jean-Pierre Braunstein, Christian Bonnard, Didier Ache, Sesame
    Inventors: Jean-Pierre Braunstein, Christian Bonnard, Didier Ache, Florence Duval
  • Heteropolymetallic clusters, methods of making such clusters, and catalysts utilizing such clusters
    Patent number: 4609639
    Abstract: Heteropolymetallic clusters of the formula Pd.sub.2 (Fe).sub.x (CO).sub.4 [CO(NO).sub.2 ].sub.y [bis(diphenylphosphine)methane].sub.2 wherein x is 1 or 2 and y is 0 or 1; x=2 when y=1 and x=1 when y=0; to the method of making such clusters by reacting Pd.sub.2 Cl.sub.2 [bis(diphenylphosphine)methane] with MnFe(CO).sub.3 Z wherein M is an alkaline metal and Z is CO (n=2) or NO (n=1); and to the novel catalysts formed utilizing said clusters.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: September 2, 1986
    Assignee: ATOCHEM
    Inventors: Pierre Braunstein, Jacques Kervennal, Jean-Luc Richert, Michel Ries
  • Process for the manufacture of aromatic isocyanates
    Patent number: 4478757
    Abstract: A process for the manufacture of aromatic isocyanates by carbonylation of nitro derivatives comprising carrying out the reaction in the presence of supported catalysts containing as the active phase particles or an oxide of a precious metal of Group VIII and of a metal selected from Group V.sub.B, VI.sub.B, and VIII of the Periodic Table; the precursor of the active phase being a heteropolymetallic complex and, more particularly, a mixed bimetallic cluster.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: October 23, 1984
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Jacques Kervennal, Jean-Marie Cognion, Pierre Braunstein