David Jung, the founder/managing partner of KAIROS Law Firm, has been practicing U.S. trademark law since 2012, with extensive experience in all aspects of trademark prosecution and enforcement, including trademark clearance, filing, Office Action responses, opposition proceedings, cancellation actions, and related litigation matters before the USPTO and the Trademark Trial and Appeal Board (TTAB).

Since the beginning of his practice, he has primarily represented companies worldwide, law firms, and individual clients seeking trademark protection in the United States. Through more than a decade of focused practice, he has developed a deep understanding of both the legal framework of U.S. trademark law and the practical business considerations faced by foreign and local clients entering or expanding in the U.S. market.

His practice covers a broad range of industries, providing comprehensive legal support tailored to each client's commercial objectives. He is committed to delivering clear, efficient, and strategically sound legal services, with a strong emphasis on responsiveness and practical results.

By combining long-standing experience in U.S. trademark law with a client-focused approach, he continues to serve as a trusted advisor to clients navigating the complexities of the U.S. intellectual property system.