Patents by Inventor Kalman Zsupan

Kalman Zsupan 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).

  • Process for the preparation of chromene derivatives
    Patent number: 4968819
    Abstract: The invention relates to a process for the preparation of Chromenes of the general Formula V ##STR1## prepared from chromanone derivatives.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: November 6, 1990
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Tibor Timar, Kalman Zsupan, Janos Repasi, Iren Borsos nee Spafranek, Istvan Kiss, Andras Fodor, Peter Maroy
  • Chromene derivatives and pesticidal composition comprising the same
    Patent number: 4866089
    Abstract: The invention relates to a process for the preparation of chromenes of the general Formula V ##STR1## (wherein R.sup.1 and R.sup.2 are hydrogen, optionally halogeno substituted C.sub.1-6 alkyl or aryl;R.sup.3 and R.sup.7 stand for hydrogen, halogen or C.sub.1-6 alkyl;R.sup.4 represents C.sub.1-8 alkyl, aryl, aralkyl or a group containing a carbonyl group;R.sup.5 and R.sup.6 stand for C.sub.1-10 alkyl, aryl, amino, hydroxyalkyl, alkoxyalkenyl, alkylmercaptoalkyl, acyl, carboxy or an ester group or a halogen atom;n is 0 or 1)which comprises(a) for the preparation of compounds, in which R.sup.5 and R.sup.6 stand for different groups, reacting a compound of the general Formula I ##STR2## with an approximately equimolar, preferably 0.8-1.5 molar amount of a reactant of the general Formula R.sup.5 --X-related to the amount of the compound of the general Formula I (wherein R.sup.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: September 12, 1989
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Tibor Timar, Kalman Zsupan, Janos Repasi, Iren Borsos nee Safranek, Istvan Kiss, Andras Fodor, Peter Maroy
  • Chromene derivatives useful as insecticides
    Patent number: 4716238
    Abstract: The invention relates to pesticidal compositions comprising as active ingredient a compound of the general Formula I ##STR1## wherein R.sup.1 and R.sup.2 stand for hydrogen, optionally halogenosubstituted C.sub.1-6 alkyl or aryl;R.sup.3 and R.sup.4 are hydrogen, halogen or C.sub.1-6 alkyl;R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are hydrogen, hydroxy, mercapto, amino, C.sub.1-10 alkyl; a group containing a methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, sec. butoxy, isobutoxy, tert. butoxy, n-pentyloxy, cyclopropyloxy, cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, cycloheptyloxy, cyclooctyloxy, allyloxy, crotyloxy, prenyloxy, propargyloxy, substituted propargyloxy, C.sub.1-3 alkylenedioxy, aralkoxy, substituted aralkoxy, hydroxyalkoxy, alkoxyalkoxy, mercaptoalkoxyalkoxy, halogenoalkoxy, dihalogenoalkoxy, trihalogenoalkoxy, polyhalogenoalkoxy, N,N-dialkylaminoalkoxy, cycloalkylaminoalkoxy, alkylenoxy-alkyleneoxy, alkylene-thia-alkylenoxy or alkylene-aza-alkylenoxy unit or C.sub.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: December 29, 1987
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Tibor Timar, Kalman Zsupan, Janos Repasi, Iren Borsos nee Safranek, Istvan Kiss, Amdras Fodor, Peter Maroy
  • Process for the preparation of N-phosphonomethyl-glycine
    Patent number: 4486359
    Abstract: N-phosphonomethylglycine is prepared from glycine and parsformaldehyde to obtain an intermediate which is reacted with dialkylphosphite to obtain an ester of the desired compound which is then hydrolyzed.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: December 4, 1984
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Marta Brendel nee Hajnoczki, Imre Gulyas, Istvan Gyoker, Kalman Zsupan, Istvan Csorvassy, Zoltan Salamon, Gabor Somogyi, Istvan Szentkiralyi, Tibor Timar, E Biro nee Czapary, Istvan Fodor, Janos Repasi