Patents by Inventor Endrene Petenyi

Endrene Petenyi 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).

  • Desloratadine salts, process for their synthesis and pharmaceutical compositions thereof
    Patent number: 7196195
    Abstract: The object of the present invention are new desloratadine salts of formula I wherein the meaning of X is an acid residue and the meaning of n is 1 or 2, and formula II wherein the meaning of X is a pK <3.5 acid residue.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: March 27, 2007
    Assignee: Richter Gedeon Vegyészeti Gyár RT.
    Inventors: János Fischer, Tamás Fodor, Ferenc Trischler, Jr., legal representative, Tamás Róbert Trischler, legal representative, Gabriel Maria Trischler, legal representative, Sándor Lévai, Endréne Petényi, Ferenc Trischler, deceased
  • Desloratadine salts,process for their synthesis and pharmaceutical compositions thereof
    Publication number: 20050203116
    Abstract: The object of the present invention are new desloratadine salts of formula I wherein the meaning of X is an acid residue and the meaning of n is 1 or 2, and formula II wherein the meaning of X is a pK<3.5 acid residue.
    Type: Application
    Filed: November 14, 2001
    Publication date: September 15, 2005
    Inventors: Janos Fischer, Tamas Fodor, Ferenc Trischler, Ferenc Trischler, Tamas Trischler, Gabriel Trischler, Sandor Levai, Endrene Petenyi
  • Process for the synthesis of a known tetrazol derivative
    Patent number: 6710183
    Abstract: A Process is disclosed for preparing a compound of the Formula (I) which comprises the steps of: (a) detritylating a compound of the Formula (III)  with 0.1 to 1 equivalent of potassium hydroxide in a C1 to C4 straight chain alcohol solvent to obtain a reaction mixture containing the compound of the Formula (I), (b) changing the C1 to C4 straight chain alcohol solvent in the reaction mixture to an aprotic solvent or a weakly protic solvent, and (c) following step (b) crystallizing out the compound of the Formula (I) from the reaction mixture.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 23, 2004
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Janos Fischer, Ildiko Ballo, Endrene Petenyi, Janos Kreidl, Laszlo Czibula, Andras Nemes, Ida Deutschne Juhasz, Eva Werkne Papp, Judit Nagyne Bagdy, Istvan Hegedüs, Jenöme Farkas
  • Process for the synthesis of a known tetrazol derivative
    Publication number: 20030078435
    Abstract: The invention relates to a process for the synthesis of losartan potassium of formula (I), chemical name: 2-n-butyl-4-chloro-1-[(2′-(tetrazol-5-yl)-1,1′biphenyl-4-yl)-methyl]-imidazol-5-methanol potassium, starting from 2-n-butyl-4-chloro-1-[(2′-(2-triphenylmetyl-2H-tetrazol-5-yl)-1,1′-biphenyl-4-yl)-methyl]-1H-imidazol-4-methanol of formula (III). According to the process the compound of formula (III) is reacted in an alcohol of formula (VI),—wherein the meaning of R is C1-C4 straight chain alkyl group—with 0.1-1 equivalent of potassium hydroxide. The final product of formula (I) is isolated after crystallizing out by changing the solvent to an aprotic or weakly protic solvent (I).
    Type: Application
    Filed: July 24, 2002
    Publication date: April 24, 2003
    Inventors: Janos Fischer, Ildiko Ballo, Endrene Petenyi, Janos Kreidl, Laszlo Czibula, Andras Nemes, Ida Deutschne Juhasz, Eva Werkne Papp, Judit Nagyne Bagdy, Istvan Hegeds, Jen?ouml;me Farkas