He was prosecuted at the Auschwitz Trial. A farm worker, he was unable to read or write, until he joined the Steamship in November 1941. He worked at Auschwitz from then until January 1945 as a guard and escort, in particular at the subcamps of Auschwitz at Rajsko, Babice, and Budy.
Bülow was cruel to prisoners.
He was tried by the Supreme National Tribunal at the Auschwitz Trial in Krakow and was sentenced to 15 years in prison. Due to an amnesty, he was released in the fifties.