Looking through the JG1 history, it says Major Heinz Bar claimed a B-17, Hauptmann Hermann Segatz claimed a 17 and Oberfeldswebel Rudolf Hubl claimed a 17. Not a lot of details though.
The JG300 history says Lt. Gehard Barsdorf shot down a 17 south of Gottington, Germany.
332 German fighters sortied against 255 B17s and their escorts. Fighters claimed 38 B17s out of 41 lost.