China's Supreme People's Court on Friday upheld an injunction prohibiting Infineon from selling the disputed gallium nitride (GaN) products in mainland China, the final word in a patent case brought by Suzhou-based rival Innoscience, SCMP reports. Both companies sit on Nvidia’s approved supplier list for 800V AI-rack power delivery , and the judgment caps a year of litigation that has handed each side a win in different jurisdictions. The court upheld a May 27th judgment from the Suzhou Intermediate People's Court that found Infineon infringed two Innoscience invention patents, ordering it to stop selling, offering, and importing the products and to pay 10 million yuan (roughly $1.48 million) in damages. In May, the full U.S. International Trade Commission affirmed an earlier determination that Innoscience infringed an Infineon patent and ordered import and sales bans, pending a 60-day presidential review period.…