Patents by Inventor Imre Peter

Imre Peter 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).

  • High purity crystalline peptides arglysasp and arglysaspval and a process for their preparation
    Patent number: 5273960
    Abstract: The present invention relates to a process for the preparation of high purity crystalline peptides Arg Lys Asp hydrate acetate and Arg Lys Asp Val from crude, amorphous peptides Arg Lys Asp and Arg Lys Asp Val hydrate acetate.The process is characterized in thatthe crude, amorphous peptide Arg Lys Asp or Arg Lys Asp Val is let stand at room temperature in 5 to 20 unit volume of ethanol containing 0.5 to 4.0% by volume of acetic acid and 5 to 25% by volume of water, wherein the volume unit is calculated for the mass unit of the material and mass unit relates to volume unit as g relates to ml,then the crystallized peptide is separated from the crystalline suspension, preferably after cooling.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: December 28, 1993
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Olga Nyeki, Istvan Schon, Laszlo Denes, Gyorgy Hajos, Laszlo Szporny, Geza Ivanyi, Tamas berhardt, Lajos Kovacs, Imre Peter, Maria Gazdag, Zsuzsanna Muck, Iidiko berhardt, Gizella Lorant
  • Process for the preparation of morphologically homogeneous forms of thiazole derivatives
    Patent number: 5128477
    Abstract: The invention relates to two morphologically homogeneous forms of Famotidine [chemical name: N-sulfamoyl-3-(2-guanidino-thiazole-4-yl-methylthio)-propionamidine]. Said forms are prepared by selective crystallization or precipitation.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: July 7, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Peter Bod, Kalman Harsanyi, Bela Hegedus, Erik Bogsch, Eva Fekecs, Imre Peter, Zsuzsanna Aracs nee Trischler, Sandor Miszori, Maria Stiller
  • Process for the preparation of morphologically homogeneous forms of thiazole derivatives
    Patent number: 5120850
    Abstract: The invention relates to two morphologically homogeneous forms of Famotidine [chemical name: N-sulfamoyl-3-(2-guanidino-thiazole-4-yl-methylthio)-propionamidine]. Said forms are prepared by selective crystallization or precipitation.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 9, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Peter Bod, Kalman Harsanyi, Bela Hegedus, Erik Bogsch, Eva Fekecs, Imre Peter, Zsuzsanna Aracs nee Trischler, Sandor Miszori, Maria Stiller
  • Process for the preparation of morphologically homogeneous forms of thiazole derivatives
    Patent number: 4894459
    Abstract: The invention relates to two morphologically homogeneous forms of Famotidine [chemical name: N-sulfamoyl-3-(2-guanidino-thiazole-4-yl-methylthio)-propionamidine]. Said forms are prepared by selective crystallisation or precipitation.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: January 16, 1990
    Assignee: Richter Gedeon Vehyeszeti Gyar Rt.
    Inventors: Peter Bod, Kalman Harsanyi, Bela Hegedus, Erik Bogsch, Eva Fekecs, Imre Peter, Zsuzsanna Aracs ne Trischler, Sandor Miszori, Maria Stiller