Patents by Inventor Gregna nee ToErzsebet

Gregna nee ToErzsebet 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: 4870065
    Abstract: The present invention relates to novel compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and stand for alkyl having 1 to 4 carbon atoms optionally substituted by one or more halogen atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl or lower alkoxy-alkyl group,R.sub.3 stands for alkyl having 1 to 6 carbon atoms or alkenyl having 2 to 6 carbon atoms,R.sub.4 and R.sub.5 are the same or different and represent hydrogen, alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, phenyl, benzyl, phenyl substituted by one or more alkyl having 1 to 3 carbon atoms and/or by one or more halogen atoms, lower alkoxy-alkyl, a group of the formula --(CH.sub.2).sub.n --R.sub.6, wherein n is an integer between 0 to 3 and R.sub.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: September 26, 1989
    Assignee: Eszakmagyarorszagi Vegyimuvek
    Inventors: Karoly Balogh, Zsolt Dombay, Karoly Fodor, Gregna nee ToErzsebet, Erno Lorik, Magdolna Magyar nee Tomorkenyi, Jozsef Nagy, Karoly Pasztor, Pal Santha, Gyula Tarpai, Istvan Toth, Eszter Urszin nee Simon