Patents by Inventor Heinz Gornitzka

Heinz Gornitzka 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).

  • ARTEMISININ-DERIVATIVE N-HETEROCYCLIC CARBENE GOLD(I) HYBRID COMPLEXES
    Publication number: 20220235073
    Abstract: The present invention relates to compounds of formula (I), which are artemisinin-derivative N-heterocyclic carbene gold (1) hybrid complexes, and to their therapeutic uses.
    Type: Application
    Filed: June 27, 2019
    Publication date: July 28, 2022
    Inventors: Catherine HEMMERT, Heinz GORNITZKA, Olivier CUVILLIER, Marie-Lise MADDELEIN
  • Use of zinc derivatives as cyclic ester polymerization catalysts
    Patent number: 7169729
    Abstract: The invention concerns the use of zinc derivatives of general formula (I) wherein: L1 represents a group of formula: —E14(R14)(R?14)(R?14), —E15(R15) (R?15) or —E16(R16); E is an atom of group 15; L2 and L3 independently represent a group of formula: —E14(R14)(R?14)(R?14), —E15(R15)(R?15) or —E16(R16), or together form a chain of formula —L?2—A—L?3—; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L?2 and L?3 independently represent a group of formula —E14(R14)(R?14) —E15(R15) or —E16—; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R?14, R?14, R15, R?15 and R16 represent various groups, as (co) polymerisation catalysts of cyclic esters
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: January 30, 2007
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Martin-Vaca Blanca, Heinz Gornitzka, Didier Bourissou, Jean-Bernard Cazaux, Guy Bertrand
  • Polymerization catalysts
    Patent number: 7101959
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 5, 2006
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of stannylenes and germylenes as polymerization catalysts for heterocycles
    Patent number: 7084237
    Abstract: The use of stannylenes and germylenes of general formula (I) wherein: M represents a tin or geranium atom; L1 and L2 independently represent a group of formula: -E14(R14) (R?14) (R?14), -E15(R15) (R?15) or -E16(R16)) or together form a chain of formula -L?1-A- L?2; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L?1 and L?2, represent, independently, a group of formula: -E14(R14) (R?14)-, E15(R15)- or -E16-; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R?14, R?14, R15, R?15 and R16 represent variable groups as polymerization catalysts of heterocycles.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: August 1, 2006
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Polymerisation catalysts
    Publication number: 20040209768
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Application
    Filed: January 20, 2004
    Publication date: October 21, 2004
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Polymerisation catalysts
    Patent number: 6790972
    Abstract: The invention relates to new compounds having an element of group 12 and having a tridentate ligand, a process for their preparation and their use in particular as a polymerization catalyst.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: September 14, 2004
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Hanh Nguyen Ngoc, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of zinc derivatives as cyclic ester polymerization catalysts
    Publication number: 20040110912
    Abstract: The invention concerns the use of zinc derivatives of general formula (I) wherein: L1 represents a group of formula: —E14(R′14)(R″14), —E15(R15)(R′15) or —E16(R16); E is an atom of group 15; L2 and L3 independently represent a group of formula: —E14(R14)(R′14)(R″14), —E15(R15)(R′15) or —E16(R16), or together form a chain of formula —L′2—A—L′3—; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L′2 and L′3 independently represent a group of formula —E14(R14)(R′14) —E15(R15) or —E16—; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R′14, R″1, R15, R′15 and R16 represent various groups, as (co) polymerisation catalysts of cyclic esters.
    Type: Application
    Filed: November 3, 2003
    Publication date: June 10, 2004
    Inventors: Anca Dumitrescu, Martin-Vaca Blanca, Heinz Gornitzka, Didier Bourissou, Jean-Bernard Cazaux, Guy Bertrand
  • Polymerisation catalyst
    Patent number: 6716787
    Abstract: A subject of the present invention is new compounds having a lanthanide and having a tridentate ligand, a process for their preparation and their use in particular as polymerization catalysts.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: April 6, 2004
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Use of stannylenes and germylenes as polymerisation catalysts for heterocycles
    Publication number: 20030153717
    Abstract: The invention concerns the use of stannylenes and germylenes of general formula (1) wherein: 1
    Type: Application
    Filed: November 7, 2002
    Publication date: August 14, 2003
    Inventors: Anca Dumitrescu, Heinz Gornitzka, Blanca Martin-Vaca, Didier Bourissou, Guy Bertrand, Jean-Bernard Cazaux
  • Organometallic complexes comprising cationic heterocyclic carbenes
    Patent number: 6492525
    Abstract: The invention concerns novel organometallic complexes comprising cationic heterocyclic carbenes. It also concerns a method for preparing said complexes from dicationic heterocyclic precursor compounds. It further concerns the use as catalysts of said organometallic complexes for a certain number of chemical reactions.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: December 10, 2002
    Assignee: Rhodia Fiber & Resin Intermediates
    Inventors: Guy Bertrand, Lutz Stelzig, Olivier Guerret, Christophe Buron, Heinz Gornitzka, Paolo Burattin