Patents by Inventor Istvan Hermes

Istvan Hermes 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: 4460771
    Abstract: New optionally racemic or optically active pyrimido(1,2a) heterocyclic compounds of the formula ##STR1## wherein m is 0, 1 or 2,n is 0, 1 or 2,R is an alkyl group containing one to six carbon atoms,R.sup.1 is hydrogen, alkyl containing one to six carbon atoms,R.sup.2 is hydrogen, alkyl containing one to six carbon atoms, optionally substituted amino, optionally substituted hydroxy, carboxy or a group derived from a carboxylic acid orR.sup.1 and R.sup.2 together form a --(CH.dbd.CH).sub.2 -- group attached to the two adjacent carbon atoms of the ring A and the broken line represents a chemical bond,R.sup.3 is hydrogen, optionally substituted alkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heterocycle, optionally substituted cycloalkyl, optionally substituted acyl or optionally substituted hydroxy,R.sup.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: July 17, 1984
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Zoltan Meszaros, Jozsef Knoll, Peter Szentmiklosi, Istvan Hermes, Agnes Horvath, Sandor Virag, Lelle Vasvari nee Debreczy, Agoston David