Patents by Inventor Gyula Pazmandi

Gyula Pazmandi 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 preparing esters of thiolcarbamic acids
    Patent number: 4613461
    Abstract: The invention relates to a new process for preparing known thiolcarbamate esters of the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 stand independently for hydrogen or a straight or branched chain alkyl group containing 1 to 6 carbon atoms or an alkenyl group containing 2 to 6 atoms, or an alkyl group containing 1 to 6 or an alkenyl group containing 2 to 6 carbon atoms and mono- or polysubstituted by halogen, oxygen, sulphur and/or nitrogen; orR.sup.1 and R.sup.2 together may represent an optionally substituted .alpha.,.omega.-alkylene group containing 4 to 6 carbon atoms;R.sup.3 and R.sup.4 stand independently for hydrogen or an alkyl group containing 1 to 4 carbon atoms and optionally substituted by halogen or by a group containing oxygen, sulphur and/or nitrogen; andR.sup.5 and R.sup.6 both stand for hydrogen; orR.sup.5 and R.sup.6 together may represent a chemical bond.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: September 23, 1986
    Assignees: MTA Kozponti Kemiai Kutato Intezet, Borsodi Vegyi Kombinat
    Inventors: Peter Viski, Laszlo Simandi, Ferenc Nagy, Gabor Besenyei, Gyorgy Paszthy, Gyula Pazmandi, Istvan Szita, Gyula Szilagyi, Istvan Toth, Ilona Szigeti nee Kiss