Patents by Inventor István Ling

István Ling 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: 9926332
    Abstract: Compounds of formula (I) having a selective dual action on the central GABAergic system, and a process for their preparation and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: March 27, 2018
    Assignee: Egis Gyogyszergyar Zrt.
    Inventors: Agnes Kenez, Ferenc Bertha, Jozsef Barkoczy, Ferenc Antoni, Istvan Gacsalyi, Balazs Mihalik, Gabor Gigler, Krisztina Moricz, Gabor Nemeth, Agnes Angyalne Pataki, Gabor Laszlo Kapus, Adrienn Palvolgyi, Istvan Ling, Janos Petho, Gyula Simig, Balazs Volk, Lax Gyorgyi Kovanyine, Andras Dancso
  • Patent number: 9822086
    Abstract: The invention relates to an improved process for the preparation of pharmaceutical active ingredients and also to high purity salts and pharmaceutical compositions prepared by said process. More particularly the invention relates to an economical process for the preparation of the compound having the international non-proprietary name (INN) vortioxetine and the chemical nomenclature 1-[2-(2,4-dimethyl-phenylsulfanyl)-phenyl]-piperazine. Vortioxetine corresponds to the following Formula Still more particularly the invention relates to the preparation of high purity vortioxetine L-(+)-mandelate salt of the Formula IX, the conversion of this salt into other highly pure salts and also to the formulation of said salts.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: November 21, 2017
    Assignee: EGIS GYOGYSZERGYAR ZRT.
    Inventors: Istvan Ling, Gyorgy Jeges, Gyorgyi Kovanyine Lax, Balazs Volk, Peter Gregor, Jeno Peter Seres, Andras Dancso, Zoltan Varga, Eva Szabo
  • Publication number: 20170114034
    Abstract: The invention relates to an improved process for the preparation of pharmaceutical active ingredients and also to high purity salts and pharmaceutical compositions prepared by said process. More particularly the invention relates to an economical process for the preparation of the compound having the international non-proprietary name (INN) vortioxetine and the chemical nomenclature 1-[2-(2,4-dimethyl-phenylsulfanyl)-phenyl]-piperazine. Vortioxetine corresponds to the following Formula Still more particularly the invention relates to the preparation of high purity vortioxetine L-(+)-mandelate salt of the Formula IX, the conversion of this salt into other highly pure salts and also to the formulation of said salts.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 27, 2017
    Applicant: Egis Gyogyszergyar Zrt.
    Inventors: Istvan LING, Gyorgy JEGES, Gyorgyi KOVANYINE LAX, Balazs VOLK, Peter GREGOR, Jeno Peter SERES, Andras DANCSO, Zoltan VARGA, Eva SZABO
  • Publication number: 20170002020
    Abstract: Compounds of formula (I) having a selective dual action on the central GABAergic system, and a process for their preparation and to pharmaceutical compositions containing them.
    Type: Application
    Filed: January 20, 2015
    Publication date: January 5, 2017
    Applicant: Egis Gyogyszergyar Zrt.
    Inventors: Agnes KENEZ, Ferenc BERTHA, Jozsef BARKOCZY, Ferenc ANTONI, Istvan GACSALYI, Balazs MIHALIK, Gabor GIGLER, Krisztina MORICZ, Gabor NEMETH, Agnes ANGYALNE PATAKI, Gabor Laszlo KAPUS, Adrienn PALVOLGYI, Istvan LING, Janos PETHO, Gyula SIMIG, Balazs VOLK, Lax Gyorgyi KOVANYINE, Andras DANCSO
  • Patent number: 8778932
    Abstract: Compounds of formula (I): wherein: R1 represents a hydrogen atom or an alkyl group; R2 represents an alkyl group; R3 represents an aryl or heteroaryl group. Medicinal products containing the same which are useful in the treatment or prevention of psychiatric and neurological disorders characterized by cognitive deficits.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 15, 2014
    Assignees: Les Laboratoires Servier, Egis Gyogyszergyar Nyrt
    Inventors: István Ling, József Barkóczy, Ferenc Antoni, István Gascályi, György Lévay, Michael Spedding, László Hársing
  • Publication number: 20120232065
    Abstract: Compounds of formula (I): wherein: R1 represents a hydrogen atom or an alkyl group; R2 represents an alkyl group; R3 represents an aryl or heteroaryl group. Medicinal products containing the same which are useful in the treatment or prevention of psychiatric and neurological disorders characterised by cognitive deficits.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Applicants: EGIS GYOGYSZERGYAR NYRT, LES LABORATOIRES SERVIER
    Inventors: István LING, József BARKÓCZY, Ferenc ANTONI, István GACSÁLYI, György LÉVAY, Michael SPEDDING, László HÁRSING
  • Patent number: 7960375
    Abstract: The invention relates to new 8-chloro-2,3-benzodiazepine derivatives of the general formula (I), wherein R stands for a lower alkyl group or a group of the general formula —NH—R?, wherein R? stands for a lower alkyl or a lower cycloalkyl group), and pharmaceutically acceptable acid addition salts thereof. The invention also encompasses a process for the preparation of said compounds, pharmaceutical compositions containing them and new intermediates useful for the preparation of the new 8-chloro-2,3-benzodiazepine derivatives. The compounds according to the invention possess AMPA/kainate receptor inhibiting activity.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 14, 2011
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Jozsef Barkoczy, Istvan Ling, Gyula Simig, Gabor Szenasi, Gabor Gigler, Szabolcs Kertesz, Gyula Szücs, Geza Szabo, Miklos Vegh, Laszlo Gabor Harsing
  • Publication number: 20090233913
    Abstract: The present invention relates to dihydro-2,3-benzodiazepine compounds of high enantiomeric purity according to the general formula (I), which contain an asymmetric centre at the position 4 of the dihydro-2,3-benzodiazepine compound, and the preparation thereof and the used intermediates as well. These compounds have anti-convulsiveA muscle relaxant and neuroprotective effect due their non-competitive AMPA antagonistic properties.
    Type: Application
    Filed: December 29, 2006
    Publication date: September 17, 2009
    Inventors: Istvan Ling, Jozsef Barkoczy, Zoltan Greff, Gabor Szenasi, Gabor Gigler, Szabolcs Kertesz, Gyula Szucs, Mihaly Albert, Gabor Kapus, Geza Szabo, Miklos Vegh, Marta Agoston, Gyorgy Levay, Krisztina Moricz, Laszlo Gabor Harsing
  • Publication number: 20080153814
    Abstract: The invention relates to new 8-chloro-2,3-benzodiazepine derivatives of the general formula (I), wherein R stands for a lower alkyl group or a group of the general formula —NH—R?, wherein R? stands for a lower alkyl or a lower cycloalkyl group), and pharmaceutically acceptable acid addition salts thereof. The invention also encompasses a process for the preparation of said compounds, pharmaceutical compositions containing them and new intermediates useful for the preparation of the new 8-chloro-2,3-benzodiazepine derivatives. The compounds according to the invention possess AMPA/kainate receptor inhibiting activity.
    Type: Application
    Filed: July 29, 2004
    Publication date: June 26, 2008
    Inventors: Jozsef Barkoczy, Istvan Ling, Gyula Simig, Gabor Szenasi, Gabor Gigler, Szabolcs Kertesz, Gyula Szucs, Geza Szabo, Miklos Vegh, Laszio Gabor Harsing
  • Patent number: 7189711
    Abstract: The invention refers to novel 2,3-benzodiazepine derivatives of formula (I) and pharmaceutical compositions containing the same as the active ingredient. The novel compounds antipasmodic, muscle relaxant and neuroprotective activities. In formula I; X represents a hydrogen atom, a chloro atom or a methoxy group; Y stands for a hydrogen atom or a halo atom; Z means a methyl group or a chloro atom; R is a C1-4 alkyl group or a group of the formula —NR1R2, wherein R1 and R2 represent, independently, a hydrogen atom, a C1-4 alkyl group, a C1-4 alkoxy group or a C3-6 cycloalkyl group.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 13, 2007
    Assignee: Egis Gyogyszergyar RT.
    Inventors: István Ling, József Barkóczy, Gyula Simig, Zoltán Greff, Zoltán Rátkai, Géza Szabó, Miklós Végh, Gábor Gigler, Gábor Szénási, Bernadett Martonné Markó, György Lévay, László Gábor Hársing
  • Patent number: 6600036
    Abstract: Compounds of formula I are described, their production and use in pharmaceutical agents.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: July 29, 2003
    Assignee: Schering Aktiengesellschaft
    Inventors: Ernese Csuzdi, Tamas Hamori, Gizella Abraham, Sandor Solyom, Istvan Tarnawa, Pal Berzsenyi, Ferenc Andrasi, Istvan Ling, Antal Simay, Melinda Gal, Katalin Horvath, Eszter Szentkuti, Marta Szollosy, Istvan Pallagi
  • Patent number: 6482819
    Abstract: 2,3-Benzodiazepines of formula (I), their stereoisomers and acid addition salts, wherein the variables have the meaning given in the specification, and pharmaceutical compositions containing them which are suitable for treating conditions associated with muscle spasms, epilepsy as well as acute and chronic forms of neurodegenerative diseases are disclosed.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: November 19, 2002
    Assignee: Gyogyszerkutato Intezet Kft.
    Inventors: Gizella Ábrahám, Emese Csuzdi, Sándor Sólyom, Pál Berzsenyi, István Tarnawa, Ferenc Andrási, István Ling, Tamás Hámori, Katalin Horváth, Imre Moravcsik, István Pallagi, Antal Simay
  • Patent number: 6323197
    Abstract: The invention concerns compounds of formula (I), in which R1, R2, R3 and R4 mean hydrogen or different substituents; X means hydrogen or halogen; Y means C1-6 alkoxy or X and Y together mean —O—(CH2)n—O—; n means 1, 2 or 3; and A together with nitrogen forms a saturated or unsaturated five-member heterocycle which can contain between 1 and 3 nitrogen atoms and/or an oxygen atom and/or one or two carbonyl groups. Owing to their non-competitive inhibiting of the AMPA receptors, these compounds can be used as medicaments for treating diseases of the central nervous system.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: November 27, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Ernese Csuzdi, Tamas Hámori, Gizella Ábrahám, Sändor Sólyom, István Tarnawa, Pál Berzsenyi, Ferenc Andrási, István Ling, Antal Simay, Melinda Gál, Katalin Horváth, Eszter Szentkuti, Márta Szöllosy, István Pallagi
  • Patent number: 6200970
    Abstract: A compound of formula I in which X means hydrogen or halogen, Y means —NR3— or —N═, R1 and R2 are the same or different and mean hydrogen, C1-C6 alkyl, nitro, halogen, the group —NR8R9, —O—C1-4 alkyl, —CF3, OH or C1-6 alkanoyloxy, R3 means hydrogen, the group —CO—R10, C1-6 alkyl or C3-7 cycloalkyl, R4 means optionally substituted C1-C6 alkyl, R5 means hydrogen or R4 and R5 together mean oxygen, R6 means C1-4 alkyl, R8 and R9 are the same or different and mean hydrogen, C1-C6 alkyl or —CO—C1-6 alkyl, R10 means hydrogen, optionally substituted C1-C6 alkyl, optionally substituted C6-10 aryl, the group —NR11R12, —O—C1-6 alkyl, C3-7 cycloalkyl, C2-6 alkenyl or —O—C3-7 cycloalkyl, R11 and R12 are the same or different and mean hydrogen, optionally substituted C1-C6 alkyl or optionally substituted C6-10 aryl and —C...C...
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: March 13, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: István Ling, Gizella Ábrahám, Sándor Sólyom, Tamás Hámori, István Tarnawa, Pál Berzsenyi, Ferenc Andrási, Emese Csuzdi, Márta Szöllósy, Antal Simay, István Lagi, Katalin Horváth
  • Patent number: 5807851
    Abstract: Derivatives of 2,3-benzodiazepine are substituted by one or two halogen atom(s) and have the general formula ##STR1## These derivatives are non-competitive AMPA antagonists and are used in pharmaceutical compositions.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: September 15, 1998
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Istvan Ling, Gizella Abraham, Pal Berzsenyi, Istvan Tarnawa, Sandor Solyom, Ferenc Andrasi, Tamas Hamori, Emese Csuzdi, Katalin Horvath, Melinda Gal, Imre Moravcsik, Marta Szollosy
  • Patent number: 5756495
    Abstract: New 3-substituted 3H-2,3-benzodiazepine derivatives of general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and n have the meanings indicated in the description, their production as well as their use as pharmaceutical agents are described.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: May 26, 1998
    Assignee: Schering Aktiengesellschaft
    Inventors: Tamas Hamori, Istvan Tarnawa, Sandor Solyom, Pal Berzsenyi, Erzsebet Birkas, Ferenc Andrasi, Istvan Ling, Tibor Hasko, Gabor Kapus, Emese Csuzdl, Marta Szollosy, Franciska Erdo, Antal Simay, Gabor Zolyomi
  • Patent number: 4785104
    Abstract: This invention relates to new 3-(hydroxymethyl)-isoquinoline derivatives of the general formula (I), their acid addition salts, and to a process for the preparation thereof, furthermore to pharmaceutical compositions containing the same, ##STR1## wherein R and R.sup.1 are identical or different and stand for a hydrogen or halogen atom, a nitro or a C.sub.1-4 alkoxy group,R.sup.2 stands for a hydrogen atom or a C.sub.1-4 alkyl group,R.sup.3 and R.sup.4 are identical or different and stand for a hydrogen atom or a C.sub.1-4 alkyl group, or R.sup.3 and R.sup.4 combined denote a methylene group,with the proviso that when R stands for 3-methoxy, R.sup.1 for 4-methoxy, R.sup.3 and R.sup.4 are identical and represent methyl or ethyl groups, R.sup.2 is other than hydrogen atom.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: November 15, 1988
    Assignee: EGIS Gyogyszergyar
    Inventors: Gyorgy Rabloczky, Jeno Korosi, Tibor Lang, Istvan Ling, Tamas Hamori, Maria Kuhar nee Kurthy, Istvan Elekes, Peter Botka, Andras Varro, Sandor Elek, Judit Sarossy nee Kincsessy, Gabor Zolyomi, Zsuzsanna Lang nee Rihmer, Imre Moravcsik