Patents by Inventor Ferenc Barta

Ferenc Barta 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).

  • Process for the preparation of amorphous atorvastatin calcium
    Publication number: 20040063969
    Abstract: A process is disclosed for the preparation of amorphous atorvastatin calcium which comprises dissolving crude atorvastatin calcium in a lower alkanol containing 2 to 4 carbon atoms or a mixture of such alkanols under heating and, after cooling, isolating the precipitated amorphous atorvastatin calcium.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 1, 2004
    Applicant: EGIS GYOGYSZERGYAR RT.
    Inventors: Zoltan Greff, Peter Kotay Nagy, Jozsef Barkoczy, Gyula Simig, Laszlo Balazs, Imre Doman, Zoltan Ratkai, Peter Seres, Zsuzsa Szent Kirallyi, Ferenc Barta, Gyorgyi Vereczkeyne Donath, Kalman Nagy
  • Process for the preparation of amorphous atorvastatin calcium
    Patent number: 6646133
    Abstract: The invention relates to a process for the preparation of amorphous atorvastatin calcium by recrystallization of crude atorvastatin from an organic solvent which comprises dissolving crude amorphous atorvastatin calcium in a lower alkanol containing 2-4 carbon atoms or a mixture of such alkanols under heating and isolating the amorphous atorvastatin calcium precipitated after cooling. The atorvastatin calcium obtained is a known valuable agent useful in treating hyperlipidemia and hypercholestrolemia.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: November 11, 2003
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Zoltan Greff, Peter Kotay Nagy, Jozsef Barkoczy, Gyula Simig, Laszlo Balazs, Imre Doman, Zoltan Ratkai, Peter Seres, Zsuzsa Szent Kirallyi, Ferenc Barta, Gyorgyi Vereczkeyne Donath, Kalman Nagy