Patents by Inventor Tivadar Tamas

Tivadar Tamas 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).

  • 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
  • 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
  • Mycophenolate mofetil impurity
    Publication number: 20050282806
    Abstract: Provided is an impurity of mycophenolate mofetil, processes for its preparation and its use as a reference.
    Type: Application
    Filed: April 26, 2005
    Publication date: December 22, 2005
    Inventors: Sandor Molnar, Tivadar Tamas, Janos Hajko, Beata Kosztya, Amihai Eisenstadt
  • Process for preparation of mycophenolate mofetil and other esters of mycophenolic acid
    Publication number: 20050250773
    Abstract: Provided are processes for the preparation of mycophenolate mofetil and other esters of mycophenolic acid.
    Type: Application
    Filed: April 26, 2005
    Publication date: November 10, 2005
    Inventors: Sandor Molnar, Csaba Szabo, Tivadar Tamas, Janos Hajko, Claude Singer, Beata Kosztya
  • 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
  • Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[2-methyl-1H-imidazol-1-YL)methyl]-4H-carbazol-4-one
    Publication number: 20050020655
    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: April 29, 2003
    Publication date: January 27, 2005
    Inventors: Sandor Molnar, Csaba Szabo, Erzsebet Sos, Szabolcs Salyi, Tivadar Tamas
  • 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
  • N-disubstituted carbamoyloxy flavones
    Patent number: 6610738
    Abstract: The invention relates to new flavone derivaties which have at least one N-disubstituted carbamoyloxy unit (OOCNR6(R7))coupled directly to one or both aromatic rings of the flavone molecule.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: August 26, 2003
    Assignee: BIOGAL Pharmaceutical Co., Ltd.
    Inventors: Ildiko B. Mihókné, György Tóth, Sándor Molnár, Tivadar Tamás, György Sulyok, Eva K. Mudráné
  • N-Disubstituted carbamoyloxy flavones
    Publication number: 20020128494
    Abstract: The invention relates to new flavone derivaties which have at least one N-disubstituted carbamoyloxy unit (OOCNR6(R7))coupled directly to one or both aromatic rings of the flavone molecule.
    Type: Application
    Filed: September 21, 2001
    Publication date: September 12, 2002
    Inventors: Ildiko B. Mihokne, Gyorgy Toth, Sandor Molnar, Tivadar Tamas, Gyorgy Sulyok, Eva K. Mudrane