US trade body hits Foxconn, Luxshare, Quanta in AI server power patent fight

The US International Trade Commission has opened a patent investigation into 20 companies, including Foxconn, Luxshare and Quanta, over the power systems inside AI servers. The probe follows a complaint from power-chip maker Vicor, which alleges that the companies' products infringe one of its patents. The ITC announced the action on Friday, setting up a case that could disrupt the supply chain for artificial intelligence infrastructure.

For the named companies, the stakes are immediate. An ITC investigation can end in an exclusion order that blocks infringing products from entering the United States, a remedy that carries more weight than the damages typically awarded in federal court. That means Foxconn, Luxshare and Quanta - three of the world's largest electronics manufacturers - could face import bans on server components if Vicor prevails. The case also puts every AI server buyer on notice.

The ITC is a favored venue for patent holders because it moves quickly. Under Section 337 of the Tariff Act of 1930, the commission investigates unfair trade practices, including patent infringement, and can issue exclusion orders that stop products at the border. The process typically takes 15 to 18 months, with an administrative law judge making an initial ruling. The commission then reviews that decision. For Vicor, the goal is likely to secure a rapid ban on competing power modules rather than a lengthy damages trial.

The 20 companies named in the complaint are not all equal players. Foxconn, formally Hon Hai Precision Industry, is the world's largest contract manufacturer and a key assembler of servers for major cloud providers. Luxshare Precision is a fast-rising Chinese supplier that has expanded into server assembly. Quanta Computer is a Taiwanese giant that builds servers for hyperscale data centers. Their inclusion shows that the dispute reaches the very top of the AI hardware supply chain, not just obscure component makers.

The patent at issue covers power systems inside AI servers, a critical and increasingly contested area. AI accelerators like Nvidia's GPUs draw enormous amounts of power, and the modules that convert and deliver that power are essential to keeping data centers running. Vicor specializes in high-efficiency power converters, and it has a history of enforcing its intellectual property. The company's complaint targets a specific patent, but the broader implication is that power delivery is now a strategic battleground in the AI era.

The case adds another layer of uncertainty to an already strained AI supply chain. Hyperscale cloud providers - Microsoft, Amazon, Google - are spending tens of billions of dollars on data centers, and any delay in server components can ripple through their deployment timelines. Even though those companies are not named in the complaint, they depend on the contract manufacturers that are. If the ITC issues an exclusion order, the impact could be felt across the entire AI ecosystem, from chipmakers to cloud customers.

For executives at the named companies, the immediate priority is legal defense. But the strategic question is whether to settle or fight. A settlement with Vicor could license the patent and avoid disruption, but it would also set a precedent for other patent holders. Fighting could take months and risk an exclusion order. For the broader industry, the case signals that power components are no longer a commodity - they are a source of competitive advantage and legal risk.

The ITC will now assign the case to an administrative law judge, who will set a target date for completion. The investigation is in its early stages, and no ruling has been made. In the meantime, the 20 companies must prepare their defense, and their customers must watch closely. The AI boom runs on more than just chips - it runs on power, and now the power is in the courtroom.