Patents by Inventor Imre Klebovich

Imre Klebovich 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).

  • Patent number: 9839607
    Abstract: The invention concerns a pH-dependent gradual sustained release composition for increasing the pH in the upper part of the small intestines. Particles of the composition are provided with a multilayer polymer coating of specific structure which ensures the gradual release of the active agent in the range of pH 4.5 to 5.5. A process for preparing said composition is also claimed.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 12, 2017
    Inventors: Péter Hajnal, Péter Szegó, István Nándor Antal, Judit Dredán, Imre Klebovich, Miléna Bea Lengyel
  • Publication number: 20130195974
    Abstract: The invention concerns a pH-dependent gradual sustained release composition for increasing the pH in the upper part of the small intestines. Particles of the composition are provided with a multilayer polymer coating of specific structure which ensures the gradual release of the active agent in the range of pH 4.5 to 5.5. A process for preparing said composition is also claimed.
    Type: Application
    Filed: May 12, 2011
    Publication date: August 1, 2013
    Inventors: Péter Hajnal, Péter Szegõ, István Nándor Antal, Judit Dredán, Imre Klebovich, Miléna Bea Lengyel
  • Publication number: 20090253712
    Abstract: A pharmaceutical composition includes: an azole derivative solubilized in a solvent system including: a) water, b) pH-adjuster, c) co-solvent and d) surfactant.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Applicant: SEMMELWEIS EGYETEM
    Inventors: Kristof KOVACS, Krisztina LUDANYI, Gyorgy STAMPF, Istvan ANTAL, Imre KLEBOVICH
  • Patent number: 6093747
    Abstract: The new compound of Formula (I) and salts thereof possess valuable anxiolytic properties.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: July 25, 2000
    Assignee: Egis Gyogyszergyar RT.
    Inventors: Istvan Gacsalyi, Imre Klebovich, Zoltan Budai, Gyula Lukacs, Erzsebet Kaufmanne Bojti, Eva Schmidt, Istvan Gyertyan, Andras Bilkei Gorzo, Gabor Blasko, Miklos Abermann, Katalin Baloghne Nemes, Gyula Grezal, Andras Egyed
  • Patent number: 5726201
    Abstract: The invention relates to oral solid pharmaceutical composition containing as active ingredient gemfibrozil and conventional pharmaceutical auxiliary agents comprising as surfactant bis-(2-ethyl-hexyl)-sodium-sulfosuccinate in an amount of 0.05-0.5% by weight relative to gemfibrozil content of the composition.The pharmaceutical compositions according to the present invention contain a relatively small amount of a surfactant, provide uniform dissolution of the active ingredient among the different batches and the standard deviation of the dissolution rate is low.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: March 10, 1998
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Pal Fekete, Erzsebet Fellner, nee Kohalmi, Andrea Sandorfalvy, Denes Bezzegh, Gyorgy Ujfalussy, Magdolna Gora, nee Hernyes, Imre Klebovich, Sandor Drabant, Attila Mandi, Biborka Maroshelyi, nee Kovacs, Marta Szanto, Zsuzsa Szlavy, nee Szell
  • Patent number: 5543155
    Abstract: The invention relates to a novel diffusion-osmotic controlled drug-release pharmaceutical composition containing a one-layer tablet core including a polymeric film-coat, a therapeutically active agent and a hydrophilic polymer; if desired, a two-layer tablet core including active agent and hydrophilic polymer in the first layer thereof and a hydrophilic polymer in the second layer thereof; at least one bore on the part of film-coat in contact with the core or core layer containing the active agent; and, if desired, containing one or more bore(s) in the part thereof in contact with the second layer containing the hydrophilic polymer, which comprises an ammonium methacrylate copolymer as coating material and hydroxypropyl-methylcellulose as hydrophilic polymer. The composition according to the invention is useful for preparing controlled drug-release tablets containing as active agents e.g. .beta.-adrenergic inhibitors (e.g. propranolol) calcium-antagonists (e.g.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: August 6, 1996
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Pal Fekete, Maria Kiraly nee Ignacz, Gabor Sipos, Zsuzsanna Jambor nee Hoffmann, Gyorgy Ujfalussy, Magdolna Gora nee Hernyes, Imre Klebovich, Sandor Drabant, Attila Mandi, Gizella Kiss nee Szabo, Erzsebet Barczay, Maria Krisztian
  • Patent number: 5473072
    Abstract: Process for the preparation of 8 -[4 -[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7,9-d ione (buspiron) of the Formula I ##STR1## and the hydrochlorides thereof having high purity by continuously adding a solution of 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-but-2 -inyl]-8-aza-spiro[4.5]decane-7,9-dione of the formula II ##STR2## formed with an inert organic solvent having a concentration of at least 40% by weight to a suspension of a hydrogenation catalyst in an inert organic solvent and optionally converting the 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7 ,9-dione thus obtained into the hydrochloride thereof.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Tibor Mezei, Gabor Blasko, Zoltan Budai, Margit Csorgo, Eva Furdyga, Imre Klebovich, Laszlo Koncz, Ilona Sztruhar, Attila Mandi, Kalman Nagy, Klara Reiter nee Esses, Gyula Simig, Judit Szego, Gyongyi Vereczkey nee Donath
  • Patent number: 4659712
    Abstract: The invention relates to fodder additives comprising a compound inducing the microsomal enzyme system of the liver, preferably a compound of the formula (I) ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical or different and stand for hydrogen, halogen, trihalomethyl, or alkyl or alkoxy each containing from 1 to 6 carbon atoms;R.sub.4 is phenyl, dialkylaminocarbonyl or alkoxycarbonyl having from 1 to 6 carbon atoms in the alkyl and alkoxy moieties, respectively;R.sub.5 is hydrogen or methyl, or together with R.sub.4 and the adjacent nitrogen atom forms a hetero-ring having up to 8 members;n is 1, 2, 3, 4 or 5;m is 0 or 1;a is 0 or 1,with the proviso that if a=0, R.sub.1 is trihalomethyl and R.sub.2 and R.sub.3 both are hydrogen, preferably in amount of 0.5 to 99% by weight, in an admixture with conventional carriers and/or additives and optionally at least one further active ingredient conventionally used in the animal husbandry.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: April 21, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: PerjeIstvan, Lao Szporny, Andras Selmeczi, Laszlo Vereczkey, Imre Klebovich, Edit Toth, Gyorgy Hajos, Jozsef Torley, Ferenc Simon, Peter Sarkozy, Attila Misley
  • Patent number: 4645779
    Abstract: The invention relates to new dialkylaminoalkoxybenzylalcohol derivatives of the formula (I) ##STR1## wherein R.sub.1 is hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms;R.sub.2 is halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms;R.sub.3 and R.sub.4 independently stand for an alkyl group having from 3 to 5 carbon atoms; andn is 2, 3, 4 or 5,and acid addition and quanernary ammonium salts thereof.According to another aspect of the invention there are provided processes for the preparation of these compounds.The new compounds provided by the invention are pharmaceutically active, in particular, they are suitable for the treatment of acute ethanolic intoxication. Pharmaceutical compositions containing them as active ingredient are another aspect of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: February 24, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4618611
    Abstract: The invention relates to new aminopropanol derivatives of the formula (I) ##STR1## wherein R.sub.1 is halogen, trihalomethyl, alkoxy having from one to 3 carbon atoms or alkyl having from one to 3 carbon atoms,R.sub.2 is alkyl having from one to 3 carbon atoms, andR.sub.3 is cycloalkyl having from 3 to 6 carbon atoms, orR.sub.2 and R.sub.3 together with the nitrogen they are attached to form an up to 8 membered ring optionally containing oxygen or a further nitrogen as an additional hetero atom, and optionally substituted with alkyl having from one to 4 carbon atoms or benzyl,and acid addition and quaternary ammonium salts thereof.According to another aspect of the invention there are provided processes for the preparation of these compounds.The new compounds are suitable for the treatment of acute ethanolic intoxication. Pharmaceutical compositions containing them are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: October 21, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4605672
    Abstract: The invention relates to the preparation of new diethylaminoalkoxybenzhydrol derivatives of the formula (I) ##STR1## wherein R.sub.1 is hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms,R.sub.2 is halogen, trihalomethyl, or alkoxy having from one to 4 carbon atoms, andn is 1, 2, 3 or 4,and acid addition and quaternary ammonium salts thereof.According to another aspect of the invention, there are provided new compounds of the formula (I), and acid addition and quaternary salts thereof. The compounds can be used for the treatment of acute ethanolic intoxication and depression syndromes. Pharmaceutical compositions containing them as active ingredient are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: August 12, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4593047
    Abstract: The invention relates to the preparation of 3-trifluoromethyl- and 2,5-dimethyl-4'-hydroxy-.alpha.-ethyl-benzhydrol. Both compounds have so far been described only as metabolites of corresponding benzhydrol derivatives containing no hydroxyl group. Neither their physico-chemical characteristics nor their manufacturing processes have been disclosed in the known publications.3-Trifluoromethyl- and 2,5-dimethyl-4'-hydroxy-.alpha.-ethyl-benzhydrol are suitable for the treatment of acute ethanolic intoxication. Accordingly, another aspect of the invention is a pharmaceutical composition containing one of these compounds as active ingredient.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: June 3, 1986
    Assignee: Richter Gedeon Vegyeszeti Cyar RT
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4510338
    Abstract: The invention relates to new resorcin derivatives of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 3 carbon atoms or alkoxy having from one to 3 carbon atoms.According to another aspect of the invention there are provided processes for the preparation of these compounds.The compounds of the formula (I) are pharmacologically active. In particular, they are suitable for the treatment of acute ethanolic intoxication. Pharmaceutical compositions containing them as active ingredient are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: April 9, 1985
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4508926
    Abstract: The invention relates to new 4-hydroxy-benzhydrols of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms, with the proviso that if R.sub.1 is hydrogen, R.sub.2 is other than hydrogen or a 3-trifluoromethyl group, or if R.sub.1 is a 2-methyl group, R.sub.2 is other than a 5-methyl group.According to another aspect of the invention there are provided processes for the preparation of these compounds.The compounds of the formula (I) are pharmacologically active. In particular, they are suitable for the treatment of acute ethanolic intoxication. Pharmaceutical compositions containing them as active ingredients are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: April 2, 1985
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu