Patents by Inventor Endre Rivo

Endre Rivo 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).

  • Publication number: 20040186170
    Abstract: The present invention is a piperazinylalkylbenzofuran derivative of the formula 1
    Type: Application
    Filed: December 15, 2003
    Publication date: September 23, 2004
    Applicant: EGIS GYOGYSZERGYAR
    Inventors: Katalin Ivanicsne Megyeri, Aniko Miklosne Kovacs, Ildiko Nagyne Gyonos, Bela Agai, Jozsef Reiter, Gyula Simig, Endre Rivo, Zoltan Tamas Nagy, Levente Ondi, Szabolcs Keriesz, Gabor Szenasi, Eva Schmidt, Katalin Pallagi, Istvan Gacsalyi, Istvan Gyeriyan, Tamas Szabados, Gyorgy Levay, Andras Egyed
  • Patent number: 5912245
    Abstract: The present invention is directed to an acid amide of the formula ##STR1## wherein R.sup.1 represents hydrogen or nitro,R.sup.2 and R.sup.3 stand for, independently from each other, hydrogen, lower alkyl or lower alkenyl each optionally carrying a substituent selected from the group consisting of halogen, hydroxy, lower alkoxy, di(lower alkyl)amino, phenyl-lower alkoxycarbonyl and a 5- to 6-membered saturated hetero-ring selected from the group consisting of piperidino, pyrrolidino, piperazino and morpholino; orR.sup.2 and R.sup.3 form, together with the adjacent nitrogen atom, a 6-membered saturated heterocyclic group selected from the group consisting of piperidino, pyrrolidino, piperazino and morpholino, said heterocyclic group optionally carrying a hydroxy or a hydroxy-lower alkyl group; or apharmaceutically acceptable salt thereof; process of making and pharmaceutical compositions and methods of treating.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: June 15, 1999
    Assignee: Egis Gyogyszergyar RT.
    Inventors: Endre Rivo, Szilveszter E. Vizi, Gabor Makara, Jozsef Reiter, Gabor Blasko, Gyula Simig, Laszlo Gaal, Marton Fekete
  • Patent number: 5064826
    Abstract: This invention relates to novel triazolopyrimidine derivatives of formulae (Ia) and (Ib), ##STR1## wherein Q represents hydrogen, a heterocyclic group optionally substituted by a C.sub.1-4 alkyl group and containing one or more oxygen and/or nitrogen atoms or a group of formula--SR.sup.1 wherein R.sup.1 is alkyl or aralkyl, or a group of formula--NR.sup.2 R.sup.3 wherein R.sup.2 and R.sup.3 are independently hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic group,m and n are independently 0, 1, 2, 3 or 4, with the provision that if m stands for 0, then n is different from 0, and if both n and m are 1 or m stands for 0 and n is 2, the Q is different from methylthio or morpholino group, their mixtures or pharmaceutically acceptable salts. Furthermore, the invention relates to a process for preparing these compounds.The compounds of formulae (Ia) and (Ib) are able to inhibit the ptosis caused by tetrabenazine and they have analgetic activity.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: November 12, 1991
    Inventors: Klara Reiter nee Esses, Jozsef Reiter, Zoltan Budai, Endre Rivo, Peter Trinka, Lujza Petocz, Gabor Gigler, Istvan Gyertyan, Istvan Gacsalyi
  • Patent number: 4831029
    Abstract: The invention relates to condensed cyclic triazole derivatives of the general Formula I ##STR1## and pharmaceutically acceptable salts thereof. The compounds of the general Formula I possess useful sedative and tranquillant properties and exhibit particularly spasmolytic, motility inhibiting, and narcosis potentiating, yohimbine potentiating and local anaesthetic and also weak reserpine ptosis inhibiting effect.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: May 16, 1989
    Inventors: Jozsef Reiter, Endre Rivo, Klara Reiter nee Esess, Marton Fekete, Frigyes Gogenyi, Lujza Petocz, Istvan Gacsalyi, Istvan Gyertyan