Patents by Inventor Peter Seres

Peter Seres 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 a 3(2H)-pyridazinone-4- substituted amino 5-chloro derivative
    Patent number: 6800758
    Abstract: The invention relates to novel processes for the preparation of 5-chloro-4-{3-[N-[2-(3,4-dimethoxyphenyl)-ethyl]-N-methylamino]-propylamino-3(2H) pyridazinone of formula (I) and the pharmaceutically acceptable acid addition salts thereof. An important feature of the invention is using 3,4,5-trichloropyridazone as starting substance of the synthesis.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: October 5, 2004
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Peter Kótay Nagy, Gyula Simig, József Barkóczy, Ilona Sztruhár, László Balázs, Imre Domán, Zoltán Greff, Zoltán Rátkai, Peter Seres, Támas Karancsi
  • 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
  • Fermenting device for the culture of aerobic micro-organisms
    Patent number: 4906574
    Abstract: A fermenting device for culturing aerobic microorganisms equipped with a plurality of stirrer-agitators also includes a preferably conical baffle screen which is open at the top and the bottom and is spaced from the walls of the fermentor device, and is disposed between each agitator for guiding air dispersed by one agitator into the space under the next agitator for redispersion thereby. Suitably an annular guide member is disposed along the interior walls of the fermentor and under the baffle screen to improve the efficacy of the redispersion. The aerobic fermentation process involves the dispersing of air introduced into the fermentor by a rotated agitator and then conducting the dispersed air by a baffle screen and optional annular guide member to a next agitator for redispersion.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: March 6, 1990
    Assignee: Biogal Gyogyszergyar
    Inventors: Janos Erdei, Erno Karacsony, Laszlo Csermely, Jeno Szilagyi, Gyorgy Santha, Peter Seres