Patents by Inventor Janos Hajko

Janos Hajko 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).

  • SOLID STATE FORMS OF VENETOCLAX AND PROCESSES FOR PREPARATION OF VENETOCLAX
    Publication number: 20210238175
    Abstract: Solid state forms of Venetoclax, pharmaceutical compositions thereof, and uses thereof are disclosed. Also disclosed are processes for the preparation of Venetoclax.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Inventors: Zsuzsa POTARINE JUHASZ, Szabolcs STRUBA, Csilla NEMETHNE RACZ, Zoltan Gabor TOTH, Andrea SZILAGYI, Renata KERTI-FERENCZI, Sandor Janos MOLNAR, Nora PASZTOR-DEBRECZENI, Janos HAJKO
  • Solid state forms of Venetoclax and processes for preparation of Venetoclax
    Patent number: 11001582
    Abstract: Processes for the preparation of Venetoclax and Venetoclax produced by the processes are disclosed.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 11, 2021
    Assignee: ASSIA CHEMICAL INDUSTRIES LTD.
    Inventors: Zsuzsa Potarine Juhasz, Szabolcs Struba, Csilla Nemethne Racz, Zoltan Gabor Toth, Andrea Szilagyi, Renata Kerti-Ferenczi, Sandor Janos Molnar, Nora Pasztor-Debreczeni, Janos Hajko
  • SOLID STATE FORMS OF VENETOCLAX AND PROCESSES FOR PREPARATION OF VENETOCLAX
    Publication number: 20190135806
    Abstract: Solid state forms of Venetoclax, pharmaceutical compositions thereof, and uses thereof are disclosed. Also disclosed are processes for the preparation of Venetoclax.
    Type: Application
    Filed: March 10, 2017
    Publication date: May 9, 2019
    Inventors: Zsuzsa POTARINE JUHASZ, Szabolcs STRUBA, Csilla NEMETHNE RACZ, Zoltan Gabor TOTH, Andrea SZILAGYI, Renata KERTI-FERENCZI, Sandor Janos MOLNAR, Nora PASZTOR-DEBRECZENI, Janos HAJKO
  • Production of dolasetron
    Patent number: 7608714
    Abstract: The present invention provides an improved process for the preparation of Dolasetron salts, in particularly Dolasetron mesylate. Also provided are intermediates for the process and methods of preparing the intermediates.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: October 27, 2009
    Assignee: TEVA Gyógyszergyár Zártkörúen Müködö Részvénytársaság
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Erika Magyar Molnarne, Csaba Peto, Csaba Szabo
  • Dolasetron trifluoroacetate, polymorphs of dolasetron trifluoroacetate and process for preparation thereof
    Publication number: 20090062546
    Abstract: Provided are crystalline forms of dolasetron trifluoroacetate, methods for their preparation, and their use in preparing dolasetron mesylate.
    Type: Application
    Filed: July 21, 2008
    Publication date: March 5, 2009
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Piroska Kovacs
  • Polymorphs of Dolasetron base and process for preparation thereof
    Publication number: 20090030207
    Abstract: The present invention provides polymorphic forms of dolasetron base and methods for their use and preparation.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Piroska Kovacs
  • Process for preparation of mycophenolate mofetil and other esters of mycophenolic acid
    Publication number: 20080280977
    Abstract: Provided are processes for the preparation of mycophenolate mofetil and other esters of mycophenolic acid.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 13, 2008
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Claude Singer, Beata Kosztya
  • Process for preparation of mycophenolate mofetil and other esters of mycophenolic acid
    Publication number: 20080281111
    Abstract: Provided are processes for the preparation of mycophenolate mofetil and other esters of mycophenolic acid.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 13, 2008
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Claude Singer, Beata Kosztya
  • Crystalline mycophenolate sodium
    Patent number: 7439373
    Abstract: Provided are crystalline mycophenolate sodium forms and processes for their preparation.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: October 21, 2008
    Assignee: TEVA Gyógyszergyár Zártkörúen Múködö Részvénytársaság
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Adrienne Kovacsne-Mezei, Judith Aronhime
  • Mycophenolate mofetil impurity
    Publication number: 20080241948
    Abstract: Provided is an impurity of mycophenolate mofetil, processes for its preparation and its use as a reference.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 2, 2008
    Inventors: Sandor Molnar, Tivadar Tamas, Janos Hajko, Beáta Kosztya, Amihai Eisenstadt
  • Preparation of 1H-imidazo[4,5-c]quinolin-4-amines via 1H-imidazo[4, 5-c]quinolin-4-phtalimide intermediates
    Publication number: 20080103310
    Abstract: The present invention provides process for the preparation of 4-amino-1H-imidazo[4,5-c]quinolines comprising the step of reacting a 1H-imidazo[4,5-c]quinolin-4-phthalimide with an amine selected from the group consisting of: alkylamine, aralkylamine, alkyldiamine, and aralkyldiamine.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 1, 2008
    Inventors: Janos Hajko, Csaba Szabo, Piroska Kovacs
  • Processes for preparation of crystalline mycophenolate sodium
    Publication number: 20080103317
    Abstract: Provided are crystalline mycophenolate sodium forms and processes for their preparation.
    Type: Application
    Filed: December 14, 2007
    Publication date: May 1, 2008
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Adrienne Kovacsne-Mezei, Judith Aronhime
  • Processes for preparation of crystalline mycophenolate sodium
    Publication number: 20080097096
    Abstract: Provided are crystalline mycophenolate sodium forms and processes for their preparation.
    Type: Application
    Filed: December 14, 2007
    Publication date: April 24, 2008
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Adrienne Kovacsne-Mezei, Judith Aronhime
  • Mycophenolate mofetil impurity
    Patent number: 7358247
    Abstract: Provided is an impurity of mycophenolate mofetil, processes for its preparation and its use as a reference.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: April 15, 2008
    Assignee: TEVA Gyógyszergyár Zártköruen Muködö Részvénytársaság
    Inventors: Sandor Molnar, Tivadar Tamas, Janos Hajko, Beáta Kosztya, Amihai Eisenstadt
  • Crystalline forms of dolasetron base and processes for preparation thereof
    Publication number: 20070203176
    Abstract: The present invention provides crystalline polymorphic forms of Dolasetron base. Also provided are methods of preparing the crystalline polymorphic forms of Dolasetron base.
    Type: Application
    Filed: January 5, 2007
    Publication date: August 30, 2007
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Erika Molnarne
  • Production of dolasetron
    Publication number: 20070203219
    Abstract: The present invention provides an improved process for the preparation of Dolasetron salts, in particularly Dolasetron mesylate. Also provided are intermediates for the process and methods of preparing the intermediates.
    Type: Application
    Filed: January 5, 2007
    Publication date: August 30, 2007
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Erika Molnarne, Csaba Peto, Csaba Szabo
  • Productioin of dolasetron
    Publication number: 20070203175
    Abstract: The present invention provides an improved process for the preparation of Dolasetron salts, in particularly Dolasetron mesylate. Also provided are intermediates for the process and methods of preparing the intermediates. Intermediates for preparing Dolasetron according to the invention include 7-alkoxycarbonyl-9-(alkoxycarbonylmethyl)-3-trialkylsilyloxy-9-azabicyclo[3.3.1]nonane compounds (SAN compounds) and endo-9-alkoxycarbonyl-5-trialkylsilyloxy-8-azatricyclo[5.3.1.03,8]undecan-10-one compounds (SQO compounds).
    Type: Application
    Filed: January 5, 2007
    Publication date: August 30, 2007
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Erika Molnarne, Csaba Peto, Csaba Szabo
  • Forms of dolasetron mesylate and processes for their preparation
    Publication number: 20070203177
    Abstract: The present invention provides crystalline polymorphic forms of Dolasetron mesylate. Also provided are methods of preparing the crystalline polymorphic forms of Dolasetron mesylate. Further, the crystalline Dolasetron mesylate forms may be used in pharmaceutical compositions.
    Type: Application
    Filed: January 5, 2007
    Publication date: August 30, 2007
    Inventors: Janos Hajko, Tivadar Tamas, Adrienne Kovacsne-Mezei, Erika Molnarne, Csaba Peto, Csaba Szabo
  • Crystalline mycophenolate sodium
    Publication number: 20060069152
    Abstract: Provided are crystalline mycophenolate sodium forms and processes for their preparation.
    Type: Application
    Filed: July 20, 2005
    Publication date: March 30, 2006
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Adrienne Kovacsne-Mezei, Judith Aronhime
  • Processes for preparation of crystalline mycophenolate sodium
    Publication number: 20060069150
    Abstract: Provided are crystalline mycophenolate sodium forms and processes for their preparation.
    Type: Application
    Filed: July 20, 2005
    Publication date: March 30, 2006
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Adrienne Kovacsne-Mezei, Judith Aronhime