Anon,
Go back and read my last post. "Concerning the industrial design innovativeness..." is a particple phrase, a comma is almost always required.
I am not sure why you are so hung up with "concerning". You added a few fancy words to your original sentence trying to improve the tone but regrettingly made it harder for reader to understand.
Concerning the industrial design innovativeness(,) Mike and Bob did not find a systematic pattern(,) which gave any indication that the importance of first-to-market strategy varies for different branches (no idea what that meant??).