The Supreme People's Court of China sustained a sales injunction against German semiconductor giant Infineon Technologies. This ruling prohibits the company from selling specific Gallium Nitride (GaN) products within mainland China.
The decision upholds a May 27, 2026, judgment from the Suzhou Intermediate People's Court. That court found Infineon infringed upon two core GaN technology patents held by Chinese competitor Innoscience.
This final victory for Innoscience impacts supply chains for electric vehicles, data centers, and advanced electronics. The ruling highlights the increasing influence of Chinese companies in foundational semiconductor patents.
The ban creates immediate uncertainty for global firms reliant on Infineon’s power semiconductor components. It marks a significant escalation in the global technology and intellectual property rivalry.