Patents by Inventor Hajnalka Vikar nee Petho

Hajnalka Vikar nee Petho 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).

  • 2-hydroxy-and 2-halo-ethylthiopyridine intermediates for preparing antiulcer compounds
    Patent number: 4691017
    Abstract: New intermediate compounds of the formula (I) are disclosed ##STR1## wherein R is hydrogen or C.sub.1 to C.sub.4 alkyl;Z is phenyl optionally substituted by one or more halogen atoms and/or alkyl groups having 1 to 4 carbon atoms; andD is hydroxy, mesyloxy, p-tosyloxy, or halogen; or pharmaceutically acceptable acid addition salt thereof. The compounds of the Formula (I) are intermediates in the preparation of new compounds having anti-ulcer activity.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: September 1, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Elemer Ezer, Kalman Harsanyi, Hajnalka Vikar nee Petho, Judit Matuz, Laszlo Szporny, Eszter Cholnoky, Osaba Kuthi, Ferenc Trischler, Bela Hegedus, Marta Kapolnas nee Pap, Anna Kallay nee Sohonyai
  • N-{2-[(3-benzoyl-2-pyridyl)-thio]-ethyl}-N'-cyano-S-methyl-isothiourea, and use as anti-ulcer agents
    Patent number: 4624959
    Abstract: The compound N-{2-[(3-benzoyl-1-pyridyl)-thio]-ethyl}-N'-cyano-S-methyl-isothiourea and pharmaceutically acceptable acid addition salts thereof are disclosed as well as pharmaceutical compositions containing same and a method of treatment employing same. The compound or its acid addition salts are effective in treating gastric oedema and thus are useful in ulcer therapy.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: November 25, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Elemer Ezer, Kalman Harsanyi, Hajnalka Vikar nee Petho, Judit Matuz, Laszlo Szporny, Eszter Cholnoky, Csaba Kuthi, Ferenc Trischler, Bela Hegedus, Marta Kapolnas nee Pap, Anna Kallay nee Sohonyai