He travelled daily from Buda to teach at two Franciscan secondary grammar schools in Esztergom and Szentendre.
Pintér carried out a compilation and critical revision of the list of the Hungarian mollusc fauna.
In addition to his work in Hungary, most of his collecting activity took place in the former Yugoslavia, Bulgaria, the Maltese Islands and Italy, where he discovered numerous new mollusk species.
Between 1975 and 1998, Pintér was the curator of the mollusk collection of the Hungarian Natural History Museum, where he made his mark as a researcher and a museologist.
After some decades of decay up to 1956, the Museum’s mollusk collection became the repository of the most significant material that has so far originated from the Balkan peninsula.