APAA e-Newsletter (Issue No. 52, April 2026)

A New Era of Patent Enforcement in Republic of Korea: Stronger Protection and Heavier Penalties

Jongsun Kim - KLP IP FIRM (Republic of Korea)

 

The South Korean intellectual property landscape is undergoing a monumental shift. Recent legislative amendments have significantly raised the stakes for patent infringement, signaling the government’s firm commitment to transforming Korea into a “high-protection” IP jurisdiction. For multinational corporations, these changes mean both enhanced protection for their assets and increased legal risks in their Korean operations.

  1. Closing the Loophole: “Exporting” as an Act of Infringement

Previously, the Korean Patent Act did not explicitly list “exporting” as an act of practicing a patent. This led to a significant legal loophole where companies could manufacture infringing goods in Korea and export them entirely to overseas markets without being held liable for direct patent infringement under the Patent Act.

  • The Former Limitation: Due to this gap, patent holders often had no choice but to seek remedies through the Korea Trade Commission (KTC), alleging “unfair international trade practices” rather than pursuing a straightforward patent infringement lawsuit in civil court. While the KTC provides effective relief, the lack of a direct cause of action in court for “exporting” remained a hurdle for rights holders.
  • The Change: The amended Patent Act now explicitly includes “exporting” as a form of patent exploitation (Article 2).
  • Implications: Rights holders can now seek direct injunctions and damages in court against entities that use Korea as a global production hub for infringing products, even if no domestic sales occur. This provides a much more robust and direct legal path for IP enforcement.
  • Effective Date: This amendment was promulgated on January 21, 2025, and will take effect on July 22, 2025.
  1. Escalated Financial Risk: Quintuple (5x) Punitive Damages

Korea is introducing one of the most stringent punitive damage regimes in the world to deter willful technology theft and trade secret misappropriation.

  • The Change: The cap for punitive damages for willful infringement of patents and trade secrets has been increased from the previous 3 times to up to 5 times (Quintuple Damages) the actual loss.
  • The Impact: This shift moves Korea beyond the “treble damages” standard common in many jurisdictions (like the U.S.), making willful infringement a high-stakes financial risk that could threaten a company’s corporate existence.
  • Effective Date: This provision for patents and trade secrets became effective on August 21, 2024. (Note: Similar 5x damages for Trademarks and Designs will follow on July 22, 2025)

Strategic Recommendations for Global Businesses

“Korea is no longer a ‘safe harbor’ for production-only models or minor infringements. The cost of legal oversight has increased fivefold.”

  1. Strict FTO (Freedom to Operate) Audits: With export activities now constituting direct infringement, companies must conduct thorough clearance searches not just for products sold in Korea, but also for those manufactured or transshipped through Korean ports.
  2. Evidence of Good Faith: Given the 5x penalty for “willful” acts, documenting a robust internal compliance process and seeking legal opinions early can be crucial in proving a lack of “willfulness” in potential disputes.

Proactive Enforcement: For foreign patent holders, these changes provide a powerful new toolkit. Korea’s specialized IP High Court and the increased damage awards make it an increasingly attractive venue for enforcing global IP portfolios.