 From 1985 to 1989 he was professor of dogmatic theology and ecumenical theology at the University of Mainz.From 1989 to 1992 Hilberath was professor of dogmatic theology and fundamental theology at the Catholic University of Mainz.Since March 1992 he has been Professor of Dogmatic Theology and History of Economic Thought at the Faculty of Catholic Theology at the University of Tübingen.