Patents by Inventor Gyorgy Hajos

Gyorgy Hajos 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: 7838672
    Abstract: The use of fused ring-1,2,4-benzotriazine derivatives as herbicides or plant growth regulators for the control of undesired plants or vegetation, compounds and compositions thereof, and processes for their preparation. The invention relates to the use of a compound of the formula (I) or a salt thereof: wherein A-W, X, Y, Z, R1, R2, R3 and R4 are defined in the description, as herbicides or plant growth regulators for the control of undesired plants or vegetation, to compounds and compositions thereof, and to processes for their preparation.
    Type: Grant
    Filed: July 17, 2004
    Date of Patent: November 23, 2010
    Assignee: Bayer CropScience GmbH
    Inventors: Arnim Kohn, Wolfgang Giencke, Hendrick Helmke, Kenneth Garcia Marques, Thomas Auler, Martin Hills, Gyorgy Hajos, Zsuzsanna Riedl, Dieter Feucht
  • Publication number: 20070042909
    Abstract: The use of fused ring-1,2,4-benzotriazine derivatives as herbicides or plant growth regulators for the control of undesired plants or vegetation, compounds and compositions thereof, and processes for their preparation. The invention relates to the use of a compound of the formula (I) or a salt thereof: wherein A-W, X, Y, Z, R1, R2, R3 and R4 are defined in the description, as herbicides or plant growth regulators for the control of undesired plants or vegetation, to compounds and compositions thereof, and to processes for their preparation.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 22, 2007
    Inventors: Arnim Kohn, Wolfgang Giencke, Hendrik Helmke, Kenneth Marques, Thomas Auler, Martin Hills, Gyorgy Hajos
  • 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
  • Patent number: 5214045
    Abstract: Novel acrylic amide derivatives of the Formula (I) ##STR1## wherein R.sup.1 represents a hydrogen or a halogen atom or a C.sub.1-4 alkyl, a C.sub.1-4 alkoxy or a nitro group.n is an integer of 0 to 2,A represents an amino acid residue derived from a naturally occurring amino acid or an antipode thereof which is bonded to the acrylic acyl residue through its amino group; or a residue derived from thiazolidinecarboxylic acid, bonded to the acrylic acyl group through its nitrogen, or a derivative of the above residues wherein any free carboxy group is esterified with a C.sub.1-4 alkyl group or is amidated; or A represents a group of the formula ##STR2## wherein R.sub.2 is a hydrogen atom or a phenyl, C.sub.1-4 alkyl or C.sub.1-4 alkoxycarbonyl group,and their salts which have cytoprotective and antiulcer to activities. A process is also described for the preparation of said compounds.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: May 25, 1993
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Tamas Fodor, Janos Fischer, Laszlo Dobay, Elemer Ezer, Judit Matuz, Laszlo Szporny, Gyorgy Hajos
  • Patent number: 5169859
    Abstract: The present invention relates to novel compounds of the general formula (I) ##STR1## wherein R means hydrogen or C.sub.1-4 alkyl group; andY stands for cyano, trifluoromethyl, aryloxy or aryl(C.sub.1-4 alkyl)oxy group.The compounds according to the invention show a gastric acid secretion-inhibiting effect and therefore, they are useful for the treatment of gastric and duodenal ulcers. In addition, they exert a cytoprotective action against gastric laesions induced, e.g. by indomethacin or acid-containing alcohol.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: December 8, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Istvan Szabadkai, Kalman Harsanyi, Zsoltne Szabo, Bela Hegedus, Elemer Ezer, Judit Matuz, Laslo Szporny, Katalin Saghy, Gyorgy Hajos, Attila Csehi, Gabor Balogh
  • Patent number: 5162359
    Abstract: Novel antihyperlipoproteinemic compounds are disclosed of the formula I, ##STR1## wherein X is a halogen atom, methyl, ethyl, methoxy or ethoxy group,Y is hydroxy if X is methoxy or ethoxy, otherwise it is a hydrogen atom or a, methoxy or ethoxy group,Z is a methoxy or ethoxy group if X or Y is a methoxy group or an ethoxy group; otherwise it is hydrogen atom,The invention also covers antiartheriosclerotic, antihyperlipoproteinemic pharmaceutical compositions, suitable for inhibiting the formation of thrombuses, comprising the compounds of formula I in an effective dose, a process for preparing the same and methods for the treatment of hyperlipoproteinemia with the aid of the said compounds or compositions.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: November 10, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Kalman Harsanyi, Peter Tetenyi, Tamas Nagy, Attila Csehi, Tibor Gizur, Bela Hegedus, Andrea Maderspach, Andras Javor, Gyorgy Hajos, Laszlo Szporny
  • Patent number: 5155123
    Abstract: The invention relates to novel pyridine derivatives of formula (I), ##STR1## wherein Q stand for a nitro or cyano group; andX.sup.1 and X.sup.2, independently from each other, represent hydrogen or halogen or a trifluoromethyl, a lower alkyl or alkoxy or nitro group bound to any of the carbon atoms of the phenyl ring.The invention further relates to pharmaceutical compositions containing these compounds and a process for their preparation.The compounds of formula (I) possess gastric acid secretion inhibiting, tissue-protecting, analgetic and mild antiinflammatory effects and are useful for therapeutical purposes.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 13, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gyorgy Domany, Elemer Ezer, Istvan Schon, Judit Matuz, Katalin Saghy, Laszlo Szporny, Gyorgy Hajos, Marta Renyei
  • Patent number: 5112815
    Abstract: The invention relates to novel 9.alpha.-hydroxy-3-oxo-4,24(25)-stigmastadien-26-oic acid derivatives of the formula (I), ##STR1## wherein M stands for hydrogen, C.sub.1-4 alkyl or a pharmaceutically accteptable cation to a process for repairing these compounds and to compositions containing said compounds which exert an anti-hypercholesteremic effect.
    Type: Grant
    Filed: February 17, 1991
    Date of Patent: May 12, 1992
    Assignee: Richer Gedeon Vegyeszet
    Inventors: Gabor Ambrus, Andrea Maderspach, Antalne Jekkel, Andras Javor, Eva Ilkoy, Gyorgy Hajos, Laszlo Szporny, Jozsef Nagy, Gyula Horvath, Imre Moravcsik
  • Patent number: 5106846
    Abstract: The present invention relates to compounds of the general formula (I), ##STR1## wherein R.sub.1 stands for hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro group;R.sub.2 means a C.sub.1-7 alkyl group optionally substituted by: a hydroxyl or oxo group; or an ester group containing 1 to 4 carbon atoms in the alkoxy moiety; or a C.sub.1-4 alkoxy, cyano, amino, C.sub.1-4 alkylamino, or dialkylamino group; or an acyl group containing 1 to 7 carbon atoms in the alkyl moiety; orR.sub.2 means an aryl-C.sub.1-7 alkyl group optionally bearing the substituents defined above for R.sub.2 in the alkyl chain and optionally substituted by halogen, nitro, C.sub.1-4 alkyl or alkoxy group in the benzene ring; orR.sub.2 represents an allyl, phenylallyl or phenylsulfonyl group, both latter groups optionally being substituted by halogen or a C.sub.1-4 alkyl group in the benzene ring; orR.sub.2 stands for a carbamoyl group substituted by one or two C.sub.1-4 alkyl group(s) or phenyl group on the nitrogen atom.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: April 21, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Istvan Szabadkai, Kalman Harsanyi, Agnes Lampert, Gyorgy Domany, Bela Hegedus, Elemer Ezer, Judit Matuz, Katalin Saghy, Laszlo Szporny, Gyorgy Hajos, Krisztina Szekely
  • Patent number: 5093320
    Abstract: Peptides are disclosed which inhibit the immune system. The peptides are selected from the group consisting of:Arg-Lys(Chc)-Asp-ValArg-Lys(Chc)-AspArg-Sar-Asp-ValArg-Sar-AspOrn-Lys-Asp-ValOrn-Lys-AspArg-Lys-Aad-ValArg-Lys-Aad[Arg-Lys-Asp-NH-CH.sub.2 -].sub.2 ##STR1##Lys-Ser-Lys-LeuSer-Lys-LeuSer-Ser-Ser-ThrLys-Glu-ThrLys-Thr-Glu-ThrPro-Lys-Leu-ThrLys-Lys-Thr-Glu andLys-His-Leu-NH.sub.2,and pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: March 3, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar R. T.
    Inventors: Kuprina O. Nyeki, Istvan Schon, Lajos Kisfaludy, deceased, Laszlo Denes, Gyorgy Hajos, Laszlo Szporny
  • Patent number: 5082835
    Abstract: The invention relates to antiinflammatory compounds of the formula (I), ##STR1## wherein A stands for hydrogen, hydroxyl or trifluoroacetoxy group;X stands for hydrogen or halogen with the proviso that if A is hydrogen, then X also means hydrogen;R stands for hydrogen, benzoyl or C.sub.1-8 alkanoyl group; andrepresents a single or double bond between two adjacent carbon atoms,as well as pharmaceutical compositions containing these compounds and a process for their preparation.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 21, 1992
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Csaba Molnar, Gyorgy Hajos, Laszlo Szporny, Jozsef Toth, Arpad Kiraly, Anna Boor nee Mezei, Janos Csorgei, Kristina Szekely, Lilla Forgacs, Gyorgy Fekete, Bulcsu Herenyi, Sandor Holly, Jozsef Szunyog
  • Patent number: 5053404
    Abstract: The invention relates to antiinflammatory compounds of the formula (I), ##STR1## wherein A stands for hydrogen or hydroxyl group;X stands for hydrogen or halogen with the proviso that if A is hydrogen, then X also means hydrogen;R stands for hydrogen, benzoyl or C.sub.1-8 alkanoyl group;R.sup.1 and R.sup.2, which are the same or different, stand for hydrogen or a C.sub.1-4 alkyl group; or one of R.sup.1 and R.sup.2 is hydrogen and the other is phenyl group; or R.sup.1 and R.sup.2 together form a C.sub.4-5 alkylene group;means a single or double bond between two adjacent carbon atoms,as well as pharmaceutical compositions containing these compounds and a process for their preparation.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: October 1, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar R. T.
    Inventors: Csaba Molnar, Gyorgy Hajos, Laszlo Szporny, Jozsef Toth, Arpad Kiraly, Anna Boor nee Mezei, Janos Csorgei, Kristina Szekely, Lilla Forgacs, Gyorgy Fekete, Bulcsu Herenyi, Sandor Holly, Jozsef Szunyog
  • Patent number: 5041535
    Abstract: The new peptides of the Formulae(1) Glp-Lys-NH.sub.2(2) Glp-Glu-Lys-NH.sub.2(3) Arg-Lys-Glu-NH.sub.2(4) Arg-lys-Asp-NH.sub.2(5) Arg-Lys-Glu-OH(6) Arg-Lys-Gln-OH(7) Leu-Val-Ala-OH(8) Arg-Orn-Asp-Val-NH.sub.2(9) Arg-Orn-Asp-Val-OH(10) Lys-Glu-Lys-Lys-OH(11) Lys-Leu-Lys-Lys-OH(12) Lys-Asp-Leu-Lys-OH(13) Glu-Leu-Val-Ala-OH and(14) Leu-Pro-Ala-Gly-OHand acid addition salts thereof inhibit the proliferation of leukaemic cells and exhibit immunostimulant effect.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: August 20, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Olga Nyeki nee Kuprina, Istvan Schon, Lajos Kisfaludy, Laszlo Denes, Gyorgy Hajos, Laszlo Szporny, Bela Szende, Karoly Lapis
  • Patent number: 5021597
    Abstract: Novel acrylic acid salts of formula ##STR1## wherein R represents a hydrogen or a halogen atom, a C.sub.1-4 alkyl, a C.sub.1-4 alkoxy or a nitro group,M represents a cation derived from bismuth, zinc or a pharmaceutically acceptable organic base,X represents an inorganic anion,n is an integer of from 0 to 2,m is an integer of from 1 to 3,p is 0 or 1, andr is an integer of from 0 to 6having cytoprotective and antiulcer activities are provided. A process is also described for the preparation of said compounds.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: June 4, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Tamas Fodor, Janos Fischer, Laszlo Dobay, Ferenc Trischler, Elemer Ezer, Judit Matuz, Katalin Saghy, Laszlo Szporny, Gyorgy Hajos
  • Patent number: 5008246
    Abstract: The invention relates to novel peptides and their acid addition salts, suppressing the function of the immune system, pharmaceutical compositions containing these peptides as well as to a process for preparing these peptides and compositions. The peptides are represented by formulae (1) to (16): ##STR1## The novel peptides are useful for the therapy of diseases where a decrease in the activity of the immune system is desirable.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: April 16, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar R. T.
    Inventors: Istvan Schon, Olga Nyeki, Lajos Kisfaludy, deceased, Laszlo Denes, Gyorgy Hajos, Laszlo Szporny
  • Patent number: 4994448
    Abstract: The new compounds of the general Formula I ##STR1## (wherein R.sub.1 stands for C.sub.1-4 alkyl or aralkyl; andR.sub.2 represents hydroxy; orR.sub.1 and R.sub.2 together form a valency bond;R.sub.3 is hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl, amino, alkylthio or a group of the Formula --NR.sub.7 R.sub.8 in which R.sub.7 and R.sub.8 may be the same or different and stand for hydrogen, C.sub.1-4 alkyl, phenyl-C.sub.1-4 alkyl, hydroxy-C.sub.1-4 alkyl or di-(C.sub.1-4 alkyl)-amino-C.sub.1-4 alkyl or together with the nitrogen atom they are attached to form a 6-membered heterocyclic ring which may optionally contain a further nitrogen, oxygen or sulfur atom; orR.sub.2 and R.sub.3 together form an oxo (.dbd.O) or thixo (.dbd.S) group;R.sub.4 represents hydrogen, C.sub.1-4 alkyl or phenyl which may optionally bear one or two halogen or nitro substituent(s);Z is a group of the Formula (a) or (b) ##STR2## A.sup.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: February 19, 1991
    Assignee: Egis Gyogyszergyar
    Inventors: Andras Messmer, Gyorgy Hajos, Zsuzsa Juhasz nee Riedl, Pal Benko, Laszlo Pallos, Lujza Petocz, Eniko Szirt nee Kiszelly, Gabor Gigler, Istvan Gyertyan, Maria Hegedus
  • Patent number: 4990524
    Abstract: The present invention relates to a method of treating a gastric ulcer by administering a 2-thia-zolone of the formula (I), ##STR1## wherein X stands for --CN, --CONH.sub.2, --CO.sub.2 H or --CO.sub.2 R group, wherein R is a C.sub.1-5 alkyl group; andn is 0, 1 or 2, with the proviso, that when X stands for CO.sub.2 H, CO.sub.2 R, n is other than 0.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: February 5, 1991
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Peter Bod, Kalman Harsanyi, Ferenc Trischler, Eva Fekecs, Bela Hegedus, Elemer Ezer, Judit Matuz, Katalin Saghy, Laszlo Szporny, Gyorgy Hajos, Krisztina Szekely
  • Patent number: 4937252
    Abstract: The present invention relates to novel 2-thiazolidinone derivatives of the general formula (I), ##STR1## wherein A stands for hydrogen, halogen or a C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro group; andn is 0 or 1.The compounds according to the invention show a cytoprotective and gastric acid secretion-inhibiting effect and thus, may be used in the therapy of gastric and duodenal ulcers.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: June 26, 1990
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Istvan Szabadkai, Kalman Harsanyi, Agnes Lampert, Gyorgy Domany, Bela Hegedus, Marta K. Pap, Elemer Ezer, Judit Matuz, Katalin Saghy, Laszlo Szporny, Gyorgy Hajos, Kristztina Szekely
  • Patent number: 4882336
    Abstract: A method of treating demyelinization clinical patterns of autoimmune origin, particularly multiple sclerosis. The pharmaceutical composition makes use of ethyl (+)-apovincaminate as the active ingredient.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: November 21, 1989
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Gabor Tigyi, Bela Bozoky, Zsuzsanna Szegvari, Tibor Frank, Gyorgy Hajos, Laszlo Szporny, Lilla Forgacs
  • Patent number: 4879404
    Abstract: The present invention relates to novel compounds of the general formula (I), ##STR1## wherein R stands for hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or a C.sub.1-4 acylamino group; andR.sup.1 is hydrogen or a carboxyl-protective group or E and/or Z configuration as well as their salts.The compounds according to the invention show a cytoprotecive effect and in addition, a valuable anti-inflammatory action. Their toxicity is low.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: November 7, 1989
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Janos Fischer, Laszlo Dobay, Mihaly Major, Elemer Ezer, Judit Matuz, Katalin Saghy, Gyorgy Hajos, Laszlo Szporny