Recently, Asian Legal Business (ALB) released its 2025 ALB China Intellectual Property Rankings. Chang Tsi & Partners has been recognized for its deep expertise in the IP field, securing positions in the Tier 2 ranking for copyright/trademark and Tier 3 ranking for patent practice among domestic Chinese law firms.

Trademark and copyright have long been a cornerstone of Chang Tsi’s practice. The firm represents many of the world’s top multinational brands, offering full-spectrum services including trademark registration, opposition, invalidation, enforcement, litigation, licensing, and customs protection. With extensive experience in combating bad-faith filings, defending well-known trademarks, and protecting brands abroad, the team has successfully resolved numerous high-stakes disputes, earning an outstanding reputation in the industry.

In recent years, Chang Tsi has significantly invested in its patent services, building a multidisciplinary team covering communications, electronics, mechanical engineering, biotechnology, and chemical industries. The firm serves clients across cutting-edge sectors such as advanced manufacturing, artificial intelligence, medical devices, and clean energy. Its services span from domestic filing and patent invalidation to overseas strategic patent portfolio management and cross-border litigation—demonstrating high-level international capabilities.

With policy support intensifying, and brands accelerating globalization and technological innovation, the demand for professional IP legal services continues to grow. Clients are increasingly seeking support not only for traditional enforcement but also for strategic IP planning, compliance, and protection of trade secrets—driving the legal industry to shift from a case-driven to a strategy-driven model.

As a full-service firm specializing in intellectual property and related commercial legal services, Chang Tsi & Partners remains committed to a client-centered approach. The firm delivers integrated enforcement solutions combining administrative, civil, and criminal channels, and handles both contentious and non-contentious matters. In high-stakes cases, the team is known for precise strategic planning and execution, helping clients achieve both legal protection and business objectives.

Being included in ALB’s IP rankings once again is a testament to Chang Tsi’s enduring strength and professional excellence. Looking ahead, the firm will continue to deepen its technical capabilities, expand its global perspective, and empower more clients to navigate the evolving IP landscape with confidence and success.