Patents by Inventor Laszlo Frank

Laszlo Frank 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: 5830903
    Abstract: The invention relates to pharmaceutical compositions for the treatment or prevention of lesions of gastrointestinal mucous membranes and having secretion inhibiting, cytoprotective activities. The compositions contain in a biologically effective quantity a triazole-group-substituted quinoline derivative of general formula (I)R.sup.1 stands for a 1-triazolyl-group in position 2 or 4 ora 3-triazolyl-thio ora 5-/C.sub.1-4 -alkyl/-3-triazolyl-thio-group,R.sup.2 stands for a hydrogen atom in position 3 or optionally in position 2, or for a C.sub.1-4 -alkyl-group,R.sup.3 stands for a hydrogen atom or for a C.sub.1-4 -alkyl-group,X stands for a hydrogen or halogen-atom or for a C.sub.1-4 -alkyl-group or its salts. The invention includes processes for the preparation of the above compositions, and methods for treatment of patients in need of such treatment by administering the substance or the composition. The prefered substance of formula (IV) is also subject of the invention.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: November 3, 1998
    Assignee: Alkaloida Chemical Co., Ltd.
    Inventors: Laszlo Frank, Klara Gyires, Andras Bilkei-Gorzo, Ferenc Korodi, Vilmos Galamb
  • Patent number: 5703113
    Abstract: The invention relates to benzopyran compounds of formula (I) possessing pharmacological activity, as well as to pharmaceutical compositions containing the compounds of formula (I) and processes for the preparation thereof.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: December 30, 1997
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Tibor Eszenyi, Peter Sebok, Laszlo Frank, Gyula Papp, Tibor Timar, Tamas Bartik
  • Patent number: 5104884
    Abstract: The invention relates to new triazolyl quinoline derivatives and acid addition salts thereof whereinR.sup.1 stands for hydrogen, methyl, trihalogenomethyl or carboxy;R.sup.2 is hydrogen, halogen, C.sub.1-4 alkyl, hydroxy, C.sub.1-4 alkoxy, phenoxy, amino, acetamino, C.sub.1-4 dialkylamino, acetyl, benzoyl, methylthio, carboxy, cyano, ethoxycarbonyl, nitro or trihalogenomethyl;R.sup.3 represents hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy;R.sup.4 stands for hydrogen, methyl or ethyl andX stands for a valency bond or --S--.The new compounds of the general Formula (I) ##STR1## possess valuable analgesic, antiphlogistic and fungicidal effect and can be used both in therapy and agriculture.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: April 14, 1992
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Ference Korodi, Laszlo Frank, Zoltan Salamon, Jozsef Sandor, Emma Pocsai, Erzsebet Terebes
  • Patent number: 5032600
    Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein R stands for ##STR2## or --NH--COA.sup.1 --R.sup.4 or ##STR3## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 16, 1991
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Kalman Hideg, Olga H. Hankovszky, Laszlo Frank, Ilona Bodi, Jozsef Csak
  • Patent number: 5028609
    Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein R stands for ##STR2## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Kalman Hideg, Olga H. Hankovszky, Laszlo Frank, Ilona Bodi, Jozsef Csak
  • Patent number: 4897413
    Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein stands for ##STR2## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: January 30, 1990
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Kalman Hideg, Olga H. Hankovszky, Laszlo Frank, Ilona Bodi, Jozsef Csak
  • Patent number: 4731376
    Abstract: Compounds are disclosed of the formula (I) ##STR1## wherein A.sup.1 is a valence bond or a C.sub.1 to C.sub.5 straight or branched chain alkylene group unsubstituted or substituted by hydroxy or aminocarbonyl;B is a valence bond or a double bond;R.sup.3 is hydrogen or C.sub.1 to C.sub.4 alkyl;R.sup.2 is a phenyl or phenoxy group unsubstituted or substituted by one or two C.sub.1 to C.sub.4 alkyl groups, C.sub.1 to C.sub.4 alkoxy groups, or halo substituents; or R.sup.2 is an amino group, a diphenylmethyl group, or an R.sup.4 --NH--CO-- group in whichR.sup.4 is 2,6-dimethyl-phenyl; or a pharmaceutically acceptable acid addition salt thereof. The compounds possess anti-arrhythmic activity and exert little or no hypotensive side effects.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: March 15, 1988
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Kalman Hideg, Olga H. Hankovszky, Laszlo Frank, Ilona Bodi, Jozsef Csak
  • Patent number: 4703056
    Abstract: The invention relates to new anti-arrhythmic compounds of the formula (I) ##STR1## wherein A is C1 to C5 alkylene which can be substituted by hydroxyl;X is a single or a double bond; andQ is a 6-membered carbocyclic moiety fused to each of the adjacent carbonyl carbon atoms, and which is either fully hydrogenated, partially hydrogenated, or aromatic, or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: October 27, 1987
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Kalman Hideg, Olga H. Hankovszky, Laszlo Frank, Ilona Bodi, Jozsef Csak