Patents by Inventor Erzsebet Meszaros Sos

Erzsebet Meszaros Sos 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).

  • Ascomycin crystalline forms and preparation thereof
    Patent number: 7439252
    Abstract: The present invention provides novel crystalline forms of ascomycin as well as processes for the preparation thereof and pharmaceutical compositions comprising such crystalline forms of ascomycin.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: October 21, 2008
    Assignee: TEVA Gyógyszergyár Zártkörúen Müködö Részvénytársaság
    Inventors: Vilmos Keri, Judith Aronhime, Erzsebet Meszaros Sos, Adrienne Kovacsne-Mezei
  • Preparation of Aztreonam
    Patent number: 7145017
    Abstract: The invention relates to a process for the synthesis of Aztreonam. Specifically, the process entails hydrolyzing [3S-[3?(Z),4?]]-3-[[(2-amino-4-thiazolyl)[(1-t-butoxycarbonyl-1-methylethoxy)imino]acetyl]amino]-4-methyl-2-oxo-1-azetidinesulfonic acid (t-Bu Aztreonam) to form Aztreonam.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: December 5, 2006
    Assignee: TEVA Gyógyszergyár Zártkörűen Működő Részvénytársaság
    Inventors: Viktor Gyollai, Erzsebet Meszaros Sos, Csaba Szabo, Claude Singer, Szabolcs Salyi
  • Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-YL)methyl]-4H-carbazol-4-one
    Publication number: 20060252942
    Abstract: A process for preparing ondansetron by transamination of an ondansetron structural analog that can be readily prepared conveniently by a Mannich reaction is provided. The process represents an improvement upon known procedures for making ondansetron by transamination because of its rapid rate, selectivity and the ease with which the product can be isolated from the reaction mixture.
    Type: Application
    Filed: July 7, 2006
    Publication date: November 9, 2006
    Inventors: Sandor Molnar, Csaba Szabo, Erzsebet Meszaros Sos, Szabolcs Salyi, Tivadar Tamas
  • Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-YL)methyl]-4H-carbazol-4-one
    Patent number: 7098345
    Abstract: A process for preparing ondansetron by transamination of an ondansetron structural analog that can be readily prepared conveniently by a Mannich reaction is provided. The process represents an improvement upon known procedures for making ondansetron by transamination because of its rapid rate, selectivity and the ease with which the product can be isolated from the reaction mixture.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: August 29, 2006
    Assignee: TEVA Gyógyszergyár Zárkörüen Müködö Részvénytársaság
    Inventors: Sandor Molnar, Csaba Szabo, Erzsebet Meszaros Sos, Szabolcs Salyi, Tivadar Tamas
  • Amorphous tacrolimus and preparation thereof
    Publication number: 20060154953
    Abstract: The present invention provides amorphous tacrolimus in a free drug particulate form. Also provided are methods for preparing amorphous tacrolimus, and a tablet containing amorphous tacrolimus.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 13, 2006
    Inventors: Vilmos Keri, Adrienne Kovacsne-Mezei, Andrea Csorvasi, Erzsebet Meszaros Sos
  • Ascomycin crystalline forms and preparation thereof
    Publication number: 20060155119
    Abstract: The present invention provides novel crystalline forms of ascomycin as well as processes for the preparation thereof and pharmaceutical compositions comprising such crystalline forms of ascomycin.
    Type: Application
    Filed: December 1, 2005
    Publication date: July 13, 2006
    Inventors: Vilmos Keri, Judith Aronhime, Erzsebet Meszaros Sos, Adrienne Kovacsne-Mezei
  • Novel crystal forms of ondansetron, processes for their preparation, pharmaceutical, compositions containing the novel forms and methods for treating nausea using them
    Publication number: 20050131045
    Abstract: Ondansetron crystalline Forms A, B, and B1 are useful in the treatment of nausea and vomiting. Some of the novel forms have uniquely high melting points. The novel forms are stable against thermally induced polymorphic transition from 30° C. up to their melting points.
    Type: Application
    Filed: September 29, 2004
    Publication date: June 16, 2005
    Inventors: Judith Aronhime, Sandor Molnar, Csaba Szabo, Erzsebet Meszaros Sos, Szabolcs Salyi, Tivadar Tamas
  • Preparation of aztreonam
    Publication number: 20040063682
    Abstract: The invention relates to a process for the synthesis of Aztreonam Specifically, the process entails hydrolyzing [3 S-[3&agr;(Z),4&bgr;]]-3-[[(2-amino-4-thiazolyl)[(1-t-butoxycarbonyl-1-methylethoxy)imino]acetyl]amino]-4-methyl-2-oxo-1-azetidinesulfonic acid (t-Bu Aztreonam) to form Aztreonam.
    Type: Application
    Filed: August 5, 2003
    Publication date: April 1, 2004
    Inventors: Viktor Gyollai, Erzsebet Meszaros Sos, Csaba Szabo, Claude Singer, Szabolcs Salyi
  • Novel crystal forms of ondansetron, processes for their preparation, pharmaceutical compositions containing the novel forms and methods for treating nausea using them
    Publication number: 20040019093
    Abstract: Ondansetron crystalline Forms A and B are useful in the treatment of nausea and vomiting. Form B has a uniquely high melting point of about 244° C. and both forms are stable against thermally induced polymorphic transition from 30° C. up to their melting points.
    Type: Application
    Filed: April 29, 2003
    Publication date: January 29, 2004
    Inventors: Judith Aronhime, Sandor Molnar, Csaba Szabo, Erzsebet Meszaros Sos, Szabolcs Salyi, Tivadar Tamas