As a trademark agent, Clair Du is mainly engaged in full‑range trademark services including domestic and foreign trademark new applications, modifications, renewals, oppositions, invalidations and re‑examinations of refused applications. She can formulate dispute‑response and trademark layout strategies for clients by combining Trademark Law provisions and examination practices to effectively safeguard clients’ trademark rights and interests. Specializing in serving overseas clients, she handles trademark‑related cases for France, the United States, the European Union, Hong Kong of China and other jurisdictions. She provides independent legal consultation and delivers professional advice with both legal rigor and commercial feasibility.