• Representation in trademark application proceedings before the German Patent and Trademark Office (GPTO), the World Intellectual Property Organization (WIPO) and the European Union Intellectual Property Office (EUIPO)
• Representation in opposition proceedings before GPTO and EUIPO
• Coordinating the assertion and defense of trademarks belonging to internationally operating clients as part of the management of global trademark portfolios
• Asserting and defending intellectual property rights in infringement proceedings
• Representation in competition and copyright matters
• Internet law, including representation in WIPO dispute proceedings
• Border seizure procedures in the event of product piracy
• Representation in out-of-court warning procedures arising from the violation of intellectual property rights and copyright, and infringements of competition law

• AIPPI
• GRUR
• ECTA
• Marketing Club Braunschweig

Lecturer in procedural trademark law (German trademarks, EU trademarks, internationally registered trademarks) from 2006 to 2018 as part of the specialized lawyer’s course on intellectual property rights at the German Lawyers’ Academy

• Risthaus: “Erfahrungssätze im Kennzeichenrecht“ (Principles derived from experience in trademark law) dissertation 2003; 2nd edition 2007
• Risthaus: “Gibt es nur eine Post?“ (Is there only one Post?), in: MarkenR 2004, 392
• Risthaus: “Ende vom Mythos des Monopoleinwands - „Lotto“ ist ein Glücksspiel” (The end of the myth of the monopoly objection - ‘Lotto’ is a Game of Chance), in: WRP 2006, 1299
• Risthaus: “Spiele und Spielregeln im Urheberrecht - Rien ne va plus?” (Games and rules in the field of copyright law – Rien ne va plus?), WRP 2009, 698
• Risthaus: “Seniorität – ein vergiftetes Geschenk“ (Seniority – a poisoned chalice), Commemorative publication for Prof. Dr. Hans-Jürgen Ahrens 2016

German, English