In the years of Nazi Germany, Linde AG benefited from the country's attempt to become self-sufficient by refraining from imports of synthetic fuel and rubber. In 1935, general manager Friedrich Linde received the title of "Wehrwirtschaftsführer", which underlined the national importance of Linde AG and allowed the company to further benefit from the German rearmament. Among the closest colleagues of the general director was Dr. Alfred Hess, plant manager in Höllriegelskreuth and uncle of Deputy Führer of the Nazi Party Rudolf Hess.