Stefan Fiedler holds a PhD in biology. The technical fields Stefan specializes in at Zimmermann & Partner comprise material sciences, non-destructive material testing, microanalysis, and fluorescence assays. He is engaged in preparing and filing application documents in close contact with the inventors, supporting applicants mainly during examination and grant proceedings at the German Patent and Trade Mark Office and the European Patent Office.

Stefan studied biology and graduated in the field of protein chemistry. During his doctorate on competitive adsorption of pesticide residues he was at the Institute for Plant Protection (IPF), Kleinmachnow. He obtained a postgraduate degree as Medical Biologist (Immunology) at the Akademie für Ärztliche Fortbildung, Berlin while working at SIfIN Berlin. Furthermore, Stefan held research positions at the Humboldt University of Berlin and at the Fraunhofer Institute for Reliability and Microintegration (IZM).