He works with clients in a wide range of industry sectors, but has particular experience in pharmaceutical, media and entertainment and the automotive industry. Christian is recommended by Legal 500, received a 2018 Lexology Client Choice Award, and was named a "Life Sciences Star" in the 2014 LMG Life Sciences Europe Report. According to World Trademark Review 1000 (2018), Christian is also highly ranked and "has a broad business perspective and comes up with inventive solutions to problems. He has expansive knowledge, particularly of non-traditional trademarks, and can convey difficult concepts in a simple way; his documents are wonderful and he is compelling in court. He is also responsive and works quickly, but always to a high standard."