Werner Prinz (dec.) joined Siemens AG, Mülheim, and from 1961 to 1994 worked at Ruhrgas AG, Essen, where he was engaged in the field of electrotechnical engineering and corrosion protection as an assistant engineer in the corrosion protection department. In the field of electrotechnical and corrosion protection engineering he has been a member of many national and international technical associations including standardization and a chairman of many technical committees.