Patents by Inventor Paul Tordo

Paul Tordo 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: 11001593
    Abstract: The present invention relates to a dinitroxide biradical compound of general formula (I): In formula (I), A is a carbon, an ammonium, or a phosphonium; each of A1 to A6 is a single bond, O, N, N(O), S, S(O), SO2, C(O), or a (C1-C4) alkyl chain; and Z1 and Z2 are selected from R1 and R2 in combination, so that there is always at least one R2 group that is substituted with R3 group. In Z1 and Z2, R1 is an H, an aryl, or a heteroaryl; R2 is an alkyl chain, an alkenyl chain, an alkynyl chain, a cycloalkyl, a heterocycloalkyl, an aryl, or a heteroaryl; and R3 is an alkyl chain, an alkenyl chain, an alkynyl chain, a cycloalkyl, a heterocycloalkyl, an aryl, a heteroaryl, an ether, an ester, or an azide. When Z1 and Z2 are combined together with the same carbon atom of the nitroxide ring to which they are bonded, they form a spirocycloalkyl or a spiroheterocycloalkyl, the spirocycloalkyl or the spiroheterocycloalkyl being substituted with R3.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: May 11, 2021
    Assignees: Universite D'aix-Marseille, Centre National De La Recherche Scientifique, Bruker Biospin, Ecole Normale Superieure De Lyon, Eth Zurich, Universite Claude Bernard Lvon 1
    Inventors: Olivier Ouari, Paul Tordo, Gilles Casano, Melanie Rosay, Fabien Aussenac, Christophe Coperet, Anne Lesage, Aaron Rossini, Lyndon Emsley, Alexandre Zagdoun
  • Patent number: 9738657
    Abstract: The invention relates to compounds of general formula (I) wherein X is C?O or SO2, M is NR2 or O, and Q1 and Q2 are nitroxide-containing radicals, and their use as a Dynamic Nuclear Polarization (DNP) agent for polarizing an NMR-active spin of a nucleus of an analyte in Nuclear Magnetic Resonance (NMR) spectroscopy.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: August 22, 2017
    Inventors: Claire Sauvee, Gilles Casano, Olivier Ouari, Paul Tordo, Fabien Aussenac, Melanie Rosay
  • Publication number: 20160195480
    Abstract: Non aqueous solvents or mixtures for DNP NMR spectroscopy, method to prepare said solvents or mixtures and use of said solvents or mixtures The present invention concerns a method to determine the efficiency of a solvent to impregnate a sample material for use in a dynamic nuclear polarization (DNP) nuclear magnetic resonance (NMR) experiments, characterized in that the method comprising: —selecting a non-aqueous solvent, —providing a polarizing agent that is soluble in the non-aqueous solvent, —dissolving the polarizing agent in the non-aqueous solvent, —impregnating or dissolving the sample material with the non-aqueous solvent containing the polarizing agent, —performing a solid state DNP NMR experiment on the impregnated sample material, —determining a DNP enhancement factor of the DNP NMR experiment.
    Type: Application
    Filed: June 8, 2012
    Publication date: July 7, 2016
    Applicants: BRUKER BIOSPIN, EIDGEN-SSISCHE TECHNISCHE HOCHSCHULE ZURICH, UNIVERSITE D'AIX-MARSEILLE, UNIVERSITE CLAUDE BERNARD LYON 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NORMALE SUPERIEURE DE LYON
    Inventors: Werner Maas, Mélanie Rosay, Christophe Coperet, David Gajan, Lyndon Emsley, Moreno Lelli, Anne Lesage, Aaron Rossini, Alexandre Zagdoun, Paul Tordo, Olivier Ouari
  • Publication number: 20160052934
    Abstract: The invention concerns a dinitroxide biradical compound, in which the two nitroxide units are held by a rigid linkage, of general formula (I) in which—A is a carbon, an ammonium or a phosphonium, each of A1 to A6 is selected separately from the group comprising a single bond, O, N, N(O), S, S(O), SO2, C(O), a (C1-C4) alkyl chain, Z1 and Z2 are chosen from RI and R2 in combination, such that there is always, in the combination, at least one R2 group that needs to be substituted by an R3 group, RI is an H, a (C6-C18) aryl or a (C3-C18) heteroaryl, R2 a (C1-C17) alkyl chain, a (C1-C17) alkenyl chain, a (C1-C17) alkynyl chain, a (C4-C17) cycloalkyl, a (C4-C17) heterocycloalkyl, a (C6-C18) aryl, a (C3-C18) heteroaryl, R3 is a (C1-C17) alkyl chain, a (C1-C17) alkenyl chain, a (C1-C17) alkynyl chain, a (C4-C17) cycloalkyl, a (C4-C17) heterocycloalkyl, a (C6-C18) aryl, a (C3-C18) heteroaryl, an ether —OR, an ester —C(O)O—R (in which R is any hydrocarbon radical), an azide, and in which, when Z1 and Z2 are combined to
    Type: Application
    Filed: April 15, 2014
    Publication date: February 25, 2016
    Inventors: Olivier Ouari, Paul Tordo, Gilles Casano, Melanie Rosay, Fabien Aussenac, Christophe Coperet, Anne Lesage, Aaron Rossini, Lyndon Emsley, Alexandre Zagdoun
  • Publication number: 20160046643
    Abstract: The invention relates to compounds of general formula (I) wherein X is C?O or SO2, M is NR2 or O, and Q1 and Q2 are nitroxide-containing radicals, and their use as a Dynamic Nuclear Polarization (DNP) agent for polarizing an NMR-active spin of a nucleus of an analyte in Nuclear Magnetic Resonance (NMR) spectroscopy.
    Type: Application
    Filed: April 11, 2014
    Publication date: February 18, 2016
    Inventors: Claire SAUVEE, Gilles CASANO, Olivier OUARI, Paul TORDO, Fabien AUSSENAC, Melanie ROSAY
  • Patent number: 9035054
    Abstract: The present invention relates to the field of organic chemistry and in particular to organic free radicals used as polarizing agents in the technique of Dynamic Nuclear Polarization (DNP), which involves transferring the polarization of electron spins to the nuclei of a compound whose Nuclear Magnetic Resonance (NMR) is being observed. It concerns Dinitroxide-type Biradical polarizing agents characterized by a rigid linkage between the aminoxyl groups of said nitroxide units. This particular structure enables, at low temperatures and high fields, optimal transfer of polarization and optimal enhancement of NMR/MAS signals of the polarized nuclei of the compound studied.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 19, 2015
    Assignee: UNIVERSITE D'AIX-MARSEILLE
    Inventors: Oliver Ouari, Hakim Karoui, Francois Le Moigne, Paul Tordo, Robert G. Griffin, Yoh Matsuki, Thorsten Maly
  • Publication number: 20140186969
    Abstract: The present invention relates to the field of organic chemistry and in particular to organic free radicals used as polarizing agents in the technique of Dynamic Nuclear Polarization (DNP), which involves transferring the polarization of electron spins to the nuclei of a compound whose Nuclear Magnetic Resonance (NMR) is being observed. It concerns Dinitroxide-type Biradical polarizing agents characterized by a rigid linkage between the aminoxyl groups of said nitroxide units. This particular structure enables, at low temperatures and high fields, optimal transfer of polarization and optimal enhancement of NMR/MAS signals of the polarized nuclei of the compound studied.
    Type: Application
    Filed: October 30, 2013
    Publication date: July 3, 2014
    Applicant: Universite D'Aix-Marseille
    Inventors: Oliver Ouari, Hakim Karoui, Francois Le Moigne, Paul Tordo, Robert S. Griffin, Yoh Matsuki, Thorstep Maly
  • Patent number: 8648193
    Abstract: The present invention relates to the field of organic chemistry and in particular to organic free radicals used as polarizing agents in the technique of Dynamic Nuclear Polarization (DNP), which involves transferring the polarization of electron spins to the nuclei of a compound whose Nuclear Magnetic Resonance (NMR) is being observed. It concerns dinitroxide-type biradical polarizing agents characterized by a rigid linkage between the nitroxide units that enables optimal orientation and distance to be maintained between the aminoxyl groups of said nitroxide units. This particular structure enables, at low temperatures and high fields, optimal transfer of polarization and optimal enhancement of NMR/MAS signals of the polarized nuclei of the compound studied.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: February 11, 2014
    Assignee: Universite d'Aix Marseille
    Inventors: Olivier Ouari, Hakim Karoui, Francois Le Moigne, Paul Tordo, Robert G. Griffin, Yoh Matsuki, Thorsten Maly
  • Patent number: 8143420
    Abstract: Methods and compositions for detecting free radicals, the compositions being spin trapping compounds comprising a nitrone having a detecting moiety and optionally having a targeting moiety for targeting the nitrone to an organ, a cell, an organelle or a molecule of interest for directly detecting free radicals, especially free radicals in biological samples.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: March 27, 2012
    Assignees: Medical Collage of Wisconsin, Inc., Université de Provence
    Inventors: Micael Joel Hardy, Marcos Lopez, Balaraman Kalyanaraman, Neil Hogg, Olivier Ouari, Paul Tordo
  • Publication number: 20100249386
    Abstract: The present invention relates to the field of organic chemistry and in particular to organic free radicals used as polarizing agents in the technique of Dynamic Nuclear Polarization (DNP), which involves transferring the polarization of electron spins to the nuclei of a compound whose Nuclear Magnetic Resonance (NMR) is being observed. It concerns dinitroxide-type biradical polarizing agents characterized by a rigid linkage between the nitroxide units that enables optimal orientation and distance to be maintained between the aminoxyl groups of said nitroxide units. This particular structure enables, at low temperatures and high fields, optimal transfer of polarization and optimal enhancement of NMR/MAS signals of the polarized nuclei of the compound studied.
    Type: Application
    Filed: May 29, 2009
    Publication date: September 30, 2010
    Applicants: UNIVERSITE DE PROVENCE, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Olivier OUARI, Hakim KAROUI, Francois Le MOIGNE, Paul TORDO, Robert G. Griffin, Yoh Matsuki, Thorsten Maly
  • Patent number: 7772340
    Abstract: A subject-matter of the invention is alkoxyamines resulting from ?-phosphorated nitroxides corresponding to the formula: in which R represents an alkyl radical having a number of carbon atoms ranging from 1 to 3, R1 represents a hydrogen atom or a residue: in which R3 represents an alkyl radical having a number of carbon atoms ranging from 1 to 20, and R2 represents a hydrogen atom, an alkyl radical having a number of carbon atoms ranging from 1 to 8, a phenyl radical, an alkali metal, such as Li, Na or K, H4N+, Bu4N+ or Bu3HN+, exhibiting a kinetic dissociation constant kd, measured at 120° C. by EPR, of greater than 0.05 s?1. These compounds can be used as initiators for the (co)polymerizations of at least one monomer which can be polymerized by the radical route.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: August 10, 2010
    Assignee: Arkema France
    Inventors: Jean-Luc Couturier, Olivier Guerret, Denis Bertin, Didier Gigmes, Sylvain Marque, Paul Tordo, Florence Chauvin, Pierre-Emmanuel Dufils
  • Publication number: 20090281330
    Abstract: The present invention involves new nitrons carrying a positive charge, useful in trapping of free radicals and especially the superoxide radical, of general formula:
    Type: Application
    Filed: July 6, 2007
    Publication date: November 12, 2009
    Inventors: Paul Tordo, Jean-Pierre Bernard Finet, Florence Nathalie Laurence Chalier, Olivier Ouari, Micael Hardy
  • Patent number: 7589210
    Abstract: The present invention involves new nitrons carrying a positive charge, useful in trapping of free radicals and especially the superoxide radical, of general formula:
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: September 15, 2009
    Assignees: Universite de Provence, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Paul Tordo, Jean-Pierre Bernard Finet, Florence Nathalie Laurence Chalier, Olivier Ouari, Micael Hardy
  • Publication number: 20090170134
    Abstract: Methods and compositions for detecting free radicals, the compositions being spin trapping compounds comprising a nitrone having a detecting moiety and optionally having a targeting moiety for targeting the nitrone to an organ, a cell, an organelle or a molecule of interest for directly detecting free radicals, especially free radicals in biological samples.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 2, 2009
    Inventors: Micael Joel Hardy, Marcos Lopez, Balaraman Kalyanaraman, Neil Hogg, Olivier Ouari, Paul Tordo
  • Publication number: 20080009636
    Abstract: The present invention involves new nitrons carrying a positive charge, useful in trapping of free radicals and especially the superoxide radical, of general formula:
    Type: Application
    Filed: October 24, 2006
    Publication date: January 10, 2008
    Inventors: Paul Tordo, Jean-Pierre Bernard Finet, Florence Nathalie Laurence Chalier, Olivier Ouari, Micael Hardy
  • Publication number: 20070167591
    Abstract: The invention relates to the use of alkoxyamines of formula (I): for the preparation of polymerized or non-polymerized mono- or polyalkoxyamines of formula (II):
    Type: Application
    Filed: March 28, 2007
    Publication date: July 19, 2007
    Applicant: Arkema France
    Inventors: Jean-Luc Couturier, Olivier Guerret, Denis Bertin, Didier Gigmes, Sylvain Marque, Paul Tordo, Pierre-Emmanuel Dufils
  • Patent number: 7214810
    Abstract: The invention relates to the use of alkoxyamines of formula (I): for the preparation of polymerized or non-polymerized mono- or polyalkoxyamines of formula (II):
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 8, 2007
    Assignee: Arkema France
    Inventors: Jean-luc Couturier, Olivier Guerret, Denis Bertin, Didier Gigmes, Sylvain Marque, Paul Tordo, Pierre-emmanuel Dufils
  • Publication number: 20060142511
    Abstract: A subject-matter of the invention is alkoxyamines resulting from ?-phosphorated nitroxides corresponding to the formula: These compounds can be used as initiators for the (co)polymerizations of at least one monomer which can be polymerized by the radical route.
    Type: Application
    Filed: July 23, 2003
    Publication date: June 29, 2006
    Inventors: Jean Couturier, Oliver Guerret, Denis Bertin, Didier Gigmes, Sylvain Marque, Paul Tordo
  • Publication number: 20050065119
    Abstract: The invention relates to the use of alkoxyamines of formula (I): for the preparation of polymerized or non-polymerized mono- or polyalkoxyamines of formula (II):
    Type: Application
    Filed: March 31, 2004
    Publication date: March 24, 2005
    Inventors: Jean-luc Couturier, Oliver Guerret, Denis Bertin, Didier Gigmes, Sylvain Marque, Paul Tordo, Pierre-Emmanuel Dufils
  • Patent number: 6706832
    Abstract: Polymers are obtained by a radical (co)polymerization of ethylene under high pressure in the presence of at least one initiating free radical (Z*) and of at least one controlling stable free radical (SFR*) which comprises the indoline nitroxide backbone represented by the formula (I). A is a hydrocarbonaceous chain forming an aromatic ring with the two carbon atoms to which it is attached, this ring being able to carry substituents or being able to carry one or more rings placed side by side, which rings are aromatic or aliphatic and optionally substituted, the carbon atoms forming the nitrogenous ring and in the alpha- and beta-position with respect to the nitrogen atom being, able to carry hydrogen atoms or substituents.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: March 16, 2004
    Assignee: Atofina
    Inventors: Eric Minaux, Lucedio Greci, Michael Buback, Paul Tordo, Thierry Senninger, Pierluigi Stipa, Patricia Carloni, Elisabetta Damiani, Giampaolo Tommasi