"Wizard of trademark law"
"'brillanter Jurist und Analytiker' sowie 'außergewöhnlicher Prozessanwalt'"
"Trade mark star"
"Führender Berater im Markenrecht"
"widely respected for his strength in trade mark, unfair competition and copyright law"
"Gold Ranking. Encyclopedia of trademark law. Michael’s briefs are extremely thorough and he always gets great results"
"excellent for really complex things" and "one of the doyens in Germany.“