Patents by Inventor Samir Zard

Samir Zard 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).

  • POLYMER HAVING ADHERENCE PROPERTIES
    Publication number: 20170218116
    Abstract: The present invention relates to the field of polymers used to form coatings at the surface of supports. More particularly, the invention relates to a polymer having adhesion properties, in particular with regard to an organic or inorganic support, characterized in that it comprises at least one and preferably several consecutive or non-consecutive structural units of formula (I): in which: B represents a carbonyl or —NR?— unit with R? representing a hydrogen atom, a C1 to C6 alkyl radical, or a C5 to C6 aryl, carbamate or acyl radical; and R represents: a hydrogen atom, a linear or branched, saturated or unsaturated C1 to C6 hydrocarbon-based radical which, where appropriate, is substituted with one or more halogen atoms, a C5 to C6 aryl radical, or an acyl, acyloxy, alkoxycarbonyl or cyano radical.
    Type: Application
    Filed: July 31, 2015
    Publication date: August 3, 2017
    Inventors: Chakib KALAI, Samir ZARD, Beatrice SIRE
  • Process for the synthesis of agomelatine
    Patent number: 8871975
    Abstract: Process for the industrial synthesis of the compound of formula (I)
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 28, 2014
    Assignee: Les Laboratories Servier
    Inventors: Samir Zard, Béatrice Sire, Mehdi Boumediene
  • Process for the synthesis of agomelatine
    Patent number: 8853449
    Abstract: Process for the industrial synthesis of the compound of formula (I)
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 7, 2014
    Assignee: Les Laboratoires Servier
    Inventors: Samir Zard, Béatrice Sire, Mehdi Boumediene
  • PROCESS FOR THE SYNTHESIS OF AGOMELATINE
    Publication number: 20130289308
    Abstract: Process for the industrial synthesis of the compound of formula (I)
    Type: Application
    Filed: January 4, 2012
    Publication date: October 31, 2013
    Applicant: LES LABORATOIRES SERVIER
    Inventors: Samir Zard, Béatrice Sire, Mehdi Boumediene
  • PROCESS FOR THE SYNTHESIS OF AGOMELATINE
    Publication number: 20130289307
    Abstract: Process for the industrial synthesis of the compound of formula (I)
    Type: Application
    Filed: January 4, 2012
    Publication date: October 31, 2013
    Applicant: Les Laboratoires Servier
    Inventors: Samir Zard, Béatrice Sire, Mehdi Boumediene
  • Compounds comprising a thiocarbonyl-sulfanyl group which can be used for the radical synthesis of ?-perfluoroalkylamine compounds
    Patent number: 7820831
    Abstract: The invention relates to compounds having the general formula (I), the method of preparation thereof and the use thereof in organic radical synthesis. The invention also relates to compounds having the formula (II), the method of preparation thereof and a method for preparing compounds having the formula (VIII).
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 26, 2010
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Samir Zard, Fabien Gagosz, Lucie Tournier
  • Method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer obtained by radical polymerisation controlled by reversible addition-fragmentation
    Patent number: 7473740
    Abstract: The present invention relates to a method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer, obtained by radical polymerisation controlled by reversible addition-cleavage with thiocarbonylthio agents, Said method comprising the step of contacting said polymer with an ozone-containing gas, during which ozone reacts with the one or several thiocarbonylthio ends.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: January 6, 2009
    Assignee: Rhodia Chimie
    Inventors: Samir Zard, Béatrice Sire, Philippe Jost
  • NOVEL COMPOUNDS COMPRISING A THIOCARBONYL-SULFANYL GROUP WHICH CAN BE USED FOR THE RADICAL SYNTHESIS OF ALPHA-PERFLUOROALKYLAMINE COMPOUNDS
    Publication number: 20080306281
    Abstract: The invention relates to compounds having the general formula (I), the method of preparation thereof and the use thereof in organic radical synthesis. The invention also relates to compounds having the formula (II), the method of preparation thereof and a method for preparing compounds having the formula (VIII).
    Type: Application
    Filed: August 6, 2008
    Publication date: December 11, 2008
    Applicant: RHODIA OPERATIONS
    Inventors: Samir Zard, Fabien Gagosz, Lucie Tournier
  • Compounds comprising a thiocarbonyl-sulfanyl group, which can be used for the radical synthesis of-?-perfluoroalkylamines
    Patent number: 7423161
    Abstract: The invention relates to compounds having the general formula (I), the method of preparation thereof and the use thereof in organic radical synthesis. The invention also relates to compounds having the formula (II), the method of preparation thereof and a method for preparing compounds having the formula (VIII).
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: September 9, 2008
    Assignee: Rhodia Chimie
    Inventors: Samir Zard, Fabien Gagosz, Lucie Tournier
  • Method for synthesis of polymers with thiol functions
    Patent number: 7396901
    Abstract: The invention concerns a method for preparing polymers having at least a thiol function, comprising pyrolysis of at least a polymer having at least a function of formula (I), wherein: R1, R2, R3 and R4 are such as defined in the description
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: July 8, 2008
    Assignee: Rhodia Chimie
    Inventors: Zofia Agnieszka Wilczewska, Mathias Destarac, Hervé Adam, Samir Zard, Chakib Kalai, Gérard Mignani
  • Polyamine polymers
    Patent number: 7385012
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of renal diseases, hyperphosphatemia, and the removal of bile acids, oxalates and iron from the gastrointestinal tract.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: June 10, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Polyamine polymers
    Patent number: 7342083
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of renal diseases, hyperphosphatemia, and the removal of bile acids, oxalates and iron from the gastrointestinal tract.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: March 11, 2008
    Assignee: Ilypsa, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Synthesis method for polymers by controlled radical polymerisation with xanthates
    Patent number: 7285610
    Abstract: A polymer composition and method of preparing same is described wherein an ethylenically unsaturated monomer is contacted with a source of free radicals and a compound of formula (1A), (1B) and (1C) as defined herein. The polymer composition may be a homopolymer or a block copolymer.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: October 23, 2007
    Assignee: Rhodia Chimie
    Inventors: Mathias Destarac, Dominique Charmot, Samir Zard, Isabelle Gauthier-Gillaizeau
  • Method of preparing benzazepines and derivatives thereof
    Publication number: 20070185323
    Abstract: The invention relates to a method of preparing benzazepine compounds having general formula (IA) consisting in reacting at least one compound having general formula (IIA) with an olefin, the compound thus obtained then being cyclised such as to produce tetralone, followed by the oxime derivative of same, which, by transformation by a Beckmann rearrangement, gives rise to the desired compounds.
    Type: Application
    Filed: February 21, 2005
    Publication date: August 9, 2007
    Inventors: Samir Zard, Alejandro Cordero Vargas, Beatrice Sire
  • Method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer obtained by radical polymerisation controlled by reversible addition-cleavage
    Publication number: 20070027266
    Abstract: The present invention relates to a method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer, obtained by radical polymerisation controlled by reversible addition-cleavage with thiocarbonylthio agents, Said method comprising the step of contacting said polymer with an ozone-containing gas, during which ozone reacts with the one or several thiocarbonylthio ends.
    Type: Application
    Filed: October 21, 2004
    Publication date: February 1, 2007
    Inventors: Samir Zard, Beatrice Sire, Philippe Jost
  • Method for free radical reduction of dithiocarbonylated or dithiophosphorylated functions borne by a polymer
    Patent number: 7109276
    Abstract: The invention concerns a method for preparing a polymer, comprising a step which consists in contacting: (A) at least a living organic polymer having at its chain end a dithiocarbonylated or dithiophosphorylated function capable of being reactivated; (B) at least a source of free radicals; and (C) at least an organic compound bearing a labile hydrogen atom, whereby the dithiocarbonylated or dithiophosphorylated function present on said living organic polymer is substituted by a hydrogen atom.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: September 19, 2006
    Assignee: Rhodia Chimie
    Inventors: Zofia Agnieszka Wilczewska, Mathias Destarac, Samir Zard, Chakib Kalai, Gérard Mignani, Hervé Adam
  • Novel compounds comprising a thiocarbonyl-sulfanyl group, which can be used for the radical synthesis of-alpha-perfluoroalkylamines
    Publication number: 20060122404
    Abstract: The invention relates to compounds having the general formula (I), the method of preparation thereof and the use thereof in organic radical synthesis. The invention also relates to compounds having the formula (II), the method of preparation thereof and a method for preparing compounds having the formula (VIII).
    Type: Application
    Filed: September 11, 2003
    Publication date: June 8, 2006
    Applicant: RHODIA CHIMIE
    Inventors: Samir Zard, Fabien Gagosz, Lucie Tournier
  • Polyamine polymers
    Publication number: 20050165190
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of renal diseases, hyperphosphatemia, and the removal of bile acids; oxalates and iron from the gastrointestinal tract.
    Type: Application
    Filed: November 3, 2004
    Publication date: July 28, 2005
    Applicant: Symyx Therapeutics, Inc.
    Inventors: Han Ting Chang, Dominique Charmot, Samir Zard
  • Polyamine polymers
    Publication number: 20050096438
    Abstract: The present invention provides polymeric and pharmaceutical compositions comprising a polymer that contains vicinal amine moieties, referred to as polyvicinalamine polymers. The polyvicinalamines can be copolymers or homopolymers. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of renal diseases, hyperphosphatemia, and the removal of bile acids, oxalates and iron from the gastrointestinal tract.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 5, 2005
    Applicant: Symyx Therapeutics, Inc.
    Inventors: Han Chang, Dominique Charmot, Samir Zard
  • Process for the synthesis of agomelatine
    Patent number: RE46218
    Abstract: Process for the industrial synthesis of the compound of formula (I)
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 29, 2016
    Assignee: LES LABORATOIRES SERVIER
    Inventors: Samir Zard, Béatrice Sire, Mehdi Boumediene